Academic literature on the topic 'Lake core'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Lake core.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Lake core"

1

Oviatt, Charles G., Robert S. Thompson, Darrell S. Kaufman, Jordon Bright, and Richard M. Forester. "Reinterpretation of the Burmester Core, Bonneville Basin, Utah." Quaternary Research 52, no. 2 (September 1999): 180–84. http://dx.doi.org/10.1006/qres.1999.2058.

Full text
Abstract:
Initial interpretation of the sediments from the Burmester core (Eardley et al. (1973). Geological Society of America Bulletin 84, 211–216) indicated that 17 deep-lake cycles, separated by shallow-lake and soil-forming intervals, occurred in the Bonneville basin during the Brunhes Chron (the last 780 × 103 yr). Our re-examination of the core, along with new sedimentological, geochronological, and paleontological data, indicate that only four deep-lake cycles occurred during this period, apparently correlative with marine oxygen-isotope stages 2, 6, 12, and 16. This interpretation suggests that large lakes formed in the Bonneville basin only during the most extensive of the Northern Hemisphere glaciations.
APA, Harvard, Vancouver, ISO, and other styles
2

Cvetkoska, A., E. Jovanovska, A. Francke, S. Tofilovska, H. Vogel, Z. Levkov, T. H. Donders, B. Wagner, and F. Wagner-Cremer. "Ecosystem regimes and responses in a coupled ancient lake system from MIS 5b to present: the diatom record of lakes Ohrid and Prespa." Biogeosciences Discussions 12, no. 17 (September 11, 2015): 15051–86. http://dx.doi.org/10.5194/bgd-12-15051-2015.

Full text
Abstract:
Abstract. In order to understand the panarchy and interactions since the last interglacial period in the oldest, most diverse and hydrologically connected European lake system, we assess changes in the diatom record and selected geochemistry data from Lake Ohrid's "DEEP site" core and compare it with the diatom and multi-proxy data from Lake Prespa core Co1215. Driven by climate forcing, tephra impact and/or human influence, the lakes experienced two adaptive cycles during the last 92 ka: "interglacial and interstadial-regime" and "glacial-regime". The patterns of regime shifts appear synchronous in both lakes, while differences occur in the inferred amplitudes of the variations. The deeper Lake Ohrid shifted between ultraoligo- and oligotrophic regimes in contrast to the more shallow Lake Prespa, which shifts from (oligo-) mesotrophic to eutrophic conditions. In response to external forcing, Lake Ohrid exhibits a high capacity to buffer disturbances, whereas Lake Prespa is much more resilient and "recovers" in relatively short time. This decoupling of the response is evident during the MIS 5/4 and 2/1 transitions, when Lake Ohrid displays prolonged and gradual changes. The lakes' specific differences in the response and feedback mechanisms and their different physical and chemical properties, probably confine a direct influence of Lake Prespa's shallow/eutrophic regimes over the productivity regimes of Lake Ohrid. Regime shifts of Lake Ohrid due to the hydrological connectivity with Lake Prespa are not evident in the data presented here. Moreover, complete ecological collapse did not happened in both lakes for the period presented in the study.
APA, Harvard, Vancouver, ISO, and other styles
3

Cvetkoska, Aleksandra, Elena Jovanovska, Alexander Francke, Slavica Tofilovska, Hendrik Vogel, Zlatko Levkov, Timme H. Donders, Bernd Wagner, and Friederike Wagner-Cremer. "Ecosystem regimes and responses in a coupled ancient lake system from MIS 5b to present: the diatom record of lakes Ohrid and Prespa." Biogeosciences 13, no. 10 (May 31, 2016): 3147–62. http://dx.doi.org/10.5194/bg-13-3147-2016.

Full text
Abstract:
Abstract. We reconstruct the aquatic ecosystem interactions since the last interglacial period in the oldest, most diverse, hydrologically connected European lake system, by using palaeolimnological diatom and selected geochemistry data from Lake Ohrid “DEEP site” core and equivalent data from Lake Prespa core, Co1215. Driven by climate forcing, the lakes experienced two adaptive cycles during the last 92 ka: "interglacial and interstadial" and "glacial" cycle. The short-term ecosystems reorganizations, e.g. regime shifts within these cycles substantially differ between the lakes, as evident from the inferred amplitudes of variation. The deeper Lake Ohrid shifted between ultra oligo- and oligotrophic regimes in contrast to the much shallower Lake Prespa, which shifted from a deeper, (oligo-) mesotrophic to a shallower, eutrophic lake and vice versa. Due to the high level of ecosystem stability (e.g. trophic state, lake level), Lake Ohrid appears relatively resistant to external forcing, such as climate and environmental change. Recovering in a relatively short time from major climate change, Lake Prespa is a resilient ecosystem. At the DEEP site, the decoupling between the lakes' response to climate change is marked in the prolonged and gradual changes during the MIS 5/4 and 2/1 transitions. These response differences and the lakes' different physical and chemical properties may limit the influence of Lake Prespa on Lake Ohrid. Regime shifts of Lake Ohrid due to potential hydrological change in Lake Prespa are not evident in the data presented here. Moreover, a complete collapse of the ecosystems functionality and loss of their diatom communities did not happen in either lake for the period presented in the study.
APA, Harvard, Vancouver, ISO, and other styles
4

Brooks, Gregory R., and Barbara E. Medioli. "Deposits and Cutoff Ages of Horseshoe and Marion Oxbow Lakes, Red River, Manitoba*." Géographie physique et Quaternaire 57, no. 2-3 (September 22, 2005): 151–58. http://dx.doi.org/10.7202/011310ar.

Full text
Abstract:
Abstract Horseshoe Lake and the Marion Lake scar, along the Red River, southern Manitoba, were cored to investigate the timing of the meander cutoffs and the sedimentology of the channel in-fill deposits. The Horseshoe Lake core, 10.75 m long, consists of 9.73 m of silt-rich deposits inferred to be lacustrine from 0 to 4 m deep, transitional from 4 to 5 m deep and alluvial below 5 m deep. Four wood and charcoal specimens sampled from the core yielded radiocarbon ages of 310 ± 40, 1730 ± 50, 2040 ± 50 and 2240 ± 50 BP. The Marion Lake core, 16.77 m long, consists of 14.73 m of silt-rich deposits inferred to be lacustrine from 0 to 5 m deep and alluvial below 8.5 m deep; the transition is indistinct and falls between 5 to 8.5 m deep. Four wood samples from the fluvial deposits yielded radiocarbon ages of 1600 ± 40, 1700 ± 40, 1660 ± 40 and 1620 ± 40 BP. The cutoffs that led to the formation of Horseshoe and Marion lakes are interpreted to have occurred at ~1990 and ~1520 cal BP or shortly thereafter, respectively. The silt-rich, alluvial-lacustrine deposits in the lakes lack structural and textural characteristics that can be readily recognized in core to distinguish the depositional environments. The absence of coarse sediments at the base of the fluvial units at both sites implies that minor to negligible amounts of sand were transported along the thalwegs of the channels prior to the meanders being cutoff. The dominance of silt within the oxbow deposits reflects sediment supply as the geomorphic setting of the river is within an extensive glaciolacustrine clay plain.
APA, Harvard, Vancouver, ISO, and other styles
5

Russell, James M., Satria Bijaksana, Hendrik Vogel, Martin Melles, Jens Kallmeyer, Daniel Ariztegui, Sean Crowe, et al. "The Towuti Drilling Project: paleoenvironments, biological evolution, and geomicrobiology of a tropical Pacific lake." Scientific Drilling 21 (July 27, 2016): 29–40. http://dx.doi.org/10.5194/sd-21-29-2016.

Full text
Abstract:
Abstract. The Towuti Drilling Project (TDP) is an international research program, whose goal is to understand long-term environmental and climatic change in the tropical western Pacific, the impacts of geological and environmental changes on the biological evolution of aquatic taxa, and the geomicrobiology and biogeochemistry of metal-rich, ultramafic-hosted lake sediments through the scientific drilling of Lake Towuti, southern Sulawesi, Indonesia. Lake Towuti is a large tectonic lake at the downstream end of the Malili lake system, a chain of five highly biodiverse lakes that are among the oldest lakes in Southeast Asia. In 2015 we carried out a scientific drilling program on Lake Towuti using the International Continental Scientific Drilling Program (ICDP) Deep Lakes Drilling System (DLDS). We recovered a total of ∼ 1018 m of core from 11 drilling sites with water depths ranging from 156 to 200 m. Recovery averaged 91.7 %, and the maximum drilling depth was 175 m below the lake floor, penetrating the entire sedimentary infill of the basin. Initial data from core and borehole logging indicate that these cores record the evolution of a highly dynamic tectonic and limnological system, with clear indications of orbital-scale climate variability during the mid- to late Pleistocene.
APA, Harvard, Vancouver, ISO, and other styles
6

Brugam, Richard B., Eric C. Grimm, and Nancy M. Eyster-Smith. "Holocene Environmental Changes in Lily Lake, Minnesota Inferred from Fossil Diatom and Pollen Assemblages." Quaternary Research 30, no. 1 (July 1988): 53–66. http://dx.doi.org/10.1016/0033-5894(88)90087-7.

Full text
Abstract:
A postglacial core was taken from Lily Lake, a soft-water lake, located on carbonate-poor till in eastern Minnesota. Pollen analysis allowed the reconstruction of watershed vegetation change. Diatom assemblages from the core were compared with 255 surface sediment assemblages from Minnesota, Maine, Labrador, and the Canadian arctic. Late-glacial assemblages were similar to Canadian arctic lakes. During the mid-postglacial period of warmer and drier climate, fossil diatom assemblages at Lily Lake were similar to those in the surface sediment of modern eutrophic hardwater lakes in Central Minnesota. The shift to hardwater diatom assemblages coincided with a shift to prairie species in fossil pollen assemblages at about 8000 yr B.P. At about 3400 year B.P. the fossil diatom assemblage that characterized presettlement times was established.
APA, Harvard, Vancouver, ISO, and other styles
7

Kennie, Patricia, Jim Bogen, and Hans Olsen. "Estimating long term sediment yields from sediment core analysis." Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation 42, no. 1 (January 1, 2010): 115–26. http://dx.doi.org/10.2478/v10060-008-0070-x.

Full text
Abstract:
Estimating long term sediment yields from sediment core analysis Sediment cores from lakes and reservoirs can be used to estimate sediment yields. In proglacial lakes, the bed sediment typically accumulates as varves, reflecting changes in seasonal and annual sedimentation. This report compares the results from two different methods of measuring suspended sediment transport in a Norwegian glacial river and lake. Sediment yields obtained from a study of sediment cores in the proglacial lake Nigardsvatn along with measurements of the delta topset were compared with a 25-year record of sediment transport based on automatic water sampling and water discharge measurements at a monitoring station at the inflowing river. During the period from 1980 to 2005, analyses of sediment cores taken from the lake bed along with measurements and grain size distribution analysis of the delta indicated that a volume of 175,670 to 202,697 m3 was deposited in the lake Nigardsvatn and corresponding river delta. The year 1980 was selected as a convenient starting point because a large-magnitude flood with a 100-year recurrence interval occurred at the end of 1979, leaving an easily recognizable sediment layer and accurate reference point. Sediment cores were taken at a total of 24 locations throughout the lake and 25 locations in the delta. The densities of the sediment cores were found to vary between 1.3 and 1.5 g/cm3 during the period examined in this study, giving a total suspended sediment load of between 175,670 and 202,697 tons. The measurements carried out at the sediment station in the glacier melt-water river gave a value of 294,800 tons during the same period. A final value of 211,100 tons is calculated from the monitoring station results after deduction of the sediment fraction which passes through the lake without being deposited. This gives a discrepancy between the two methods of 8,403 to 35,430 tons (4-20%). This can be partially attributed to the difficulties of measuring the water discharge in the unstable glacier meltwater river. In conclusion, sediment cores may be used to extrapolate or correct measurements from sediment monitoring stations over longer periods but caution should be made when considering single years.
APA, Harvard, Vancouver, ISO, and other styles
8

Fujisaki-Manome, Ayumi, Greg E. Mann, Eric J. Anderson, Philip Y. Chu, Lindsay E. Fitzpatrick, Stanley G. Benjamin, Eric P. James, Tatiana G. Smirnova, Curtis R. Alexander, and David M. Wright. "Improvements to Lake-Effect Snow Forecasts Using a One-Way Air–Lake Model Coupling Approach." Journal of Hydrometeorology 21, no. 12 (December 2020): 2813–28. http://dx.doi.org/10.1175/jhm-d-20-0079.1.

Full text
Abstract:
AbstractLake-effect convective snowstorms frequently produce high-impact, hazardous winter weather conditions downwind of the North American Great Lakes. During lake-effect snow events, the lake surfaces can cool rapidly, and in some cases, notable development of ice cover occurs. Such rapid changes in the lake-surface conditions are not accounted for in existing operational weather forecast models, such as the National Oceanic and Atmospheric Administration’s (NOAA) High-Resolution Rapid Refresh (HRRR) model, resulting in reduced performance of lake-effect snow forecasts. As a milestone to future implementations in the Great Lakes Operational Forecast System (GLOFS) and HRRR, this study examines the one-way linkage between the hydrodynamic-ice model [the Finite-Volume Community Ocean Model coupled with the unstructured grid version of the Los Alamos Sea Ice Model (FVCOM-CICE), the physical core model of GLOFS] and the atmospheric model [the Weather Research and Forecasting (WRF) Model, the physical core model of HRRR]. The realistic representation of lake-surface cooling and ice development or its fractional coverage during three lake-effect snow events was achieved by feeding the FVCOM-CICE simulated lake-surface conditions to WRF (using a regional configuration of HRRR), resulting in the improved simulation of the turbulent heat fluxes over the lakes and resulting snow water equivalent in the downwind areas. This study shows that the one-way coupling is a practical approach that is well suited to the operational environment, as it requires little to no increase in computational resources yet can result in improved forecasts of regional weather and lake conditions.
APA, Harvard, Vancouver, ISO, and other styles
9

Morris, J. R., and W. Kwain. "Sediment pH in Profundal Core Samples from the Turkey Lakes (Algoma, Ontario)." Canadian Journal of Fisheries and Aquatic Sciences 45, S1 (December 19, 1988): s155—s158. http://dx.doi.org/10.1139/f88-280.

Full text
Abstract:
Vertical pH profiles were recorded in sediment cores from four of the Turkey Lakes in the Algoma region of northern Ontario. In the three upper lakes of the chain, median down-core pH, which should be correlated with historic lake water pH, was below the median down-core pH for other lakes in northeastern Ontario. The Turkey lakes had probably been relatively acidic, therefore, since pre-industrial times. Down-core pH tended to be lower in upstream lakes. While a pH minimum was typically observed at the sediment–water interface, the surficial sediments were not acidified relative to down-core sediments.
APA, Harvard, Vancouver, ISO, and other styles
10

Vyse, Stuart A., Ulrike Herzschuh, Gregor Pfalz, Lyudmila A. Pestryakova, Bernhard Diekmann, Norbert Nowaczyk, and Boris K. Biskaborn. "Sediment and carbon accumulation in a glacial lake in Chukotka (Arctic Siberia) during the Late Pleistocene and Holocene: combining hydroacoustic profiling and down-core analyses." Biogeosciences 18, no. 16 (August 24, 2021): 4791–816. http://dx.doi.org/10.5194/bg-18-4791-2021.

Full text
Abstract:
Abstract. Lakes act as important sinks for inorganic and organic sediment components. However, investigations of sedimentary carbon budgets within glacial lakes are currently absent from Arctic Siberia. The aim of this paper is to provide the first reconstruction of accumulation rates, sediment and carbon budgets from a lacustrine sediment core from Lake Rauchuagytgyn, Chukotka (Arctic Siberia). We combined multiple sediment biogeochemical and sedimentological parameters from a radiocarbon-dated 6.5 m sediment core with lake basin hydroacoustic data to derive sediment stratigraphy, sediment volumes and infill budgets. Our results distinguished three principal sediment and carbon accumulation regimes that could be identified across all measured environmental proxies including early Marine Isotope Stage 2 (MIS2) (ca. 29–23.4 ka cal BP), mid-MIS2–early MIS1 (ca. 23.4–11.69 ka cal BP) and the Holocene (ca. 11.69–present). Estimated organic carbon accumulation rates (OCARs) were higher within Holocene sediments (average 3.53 g OC m−2 a−1) than Pleistocene sediments (average 1.08 g OC m−2 a−1) and are similar to those calculated for boreal lakes from Quebec and Finland and Lake Baikal but significantly lower than Siberian thermokarst lakes and Alberta glacial lakes. Using a bootstrapping approach, we estimated the total organic carbon pool to be 0.26 ± 0.02 Mt and a total sediment pool of 25.7 ± 1.71 Mt within a hydroacoustically derived sediment volume of ca. 32 990 557 m3. The total organic carbon pool is substantially smaller than Alaskan yedoma, thermokarst lake sediments and Alberta glacial lakes but shares similarities with Finnish boreal lakes. Temporal variability in sediment and carbon accumulation dynamics at Lake Rauchuagytgyn is controlled predominantly by palaeoclimate variation that regulates lake ice-cover dynamics and catchment glacial, fluvial and permafrost processes through time. These processes, in turn, affect catchment and within-lake primary productivity as well as catchment soil development. Spatial differences compared to other lake systems at a trans-regional scale likely relate to the high-latitude, mountainous location of Lake Rauchuagytgyn.
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Lake core"

1

Manson, K. J. "Aspects of the palaeolimnology of three Norfolk Broads." Thesis, University of East Anglia, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378901.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bridges, K. S. "Deposition processes and their impact on a heavily industrialized region of the northern Czech Republic." Thesis, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266752.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Thapalia, Anita. "Zinc and copper isotopes as tracers of anthropogenic contamination in a sediment core from an urban lake." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Fransner, Oscar. "Sediment variations in the Kuchi Lake, southern Taiwan: : Climate signal or tectonics?" Thesis, Stockholms universitet, Institutionen för geologiska vetenskaper, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-62193.

Full text
Abstract:
Climate archives are of greatest significance when it comes to paleoclimate studies, since these types of archives in a natural way have registered and preserved the conditions of the past. There are several types of climate archives, one of the most commonly used are lake sediments, because lakes can reveal different types of information, for example weathering, vegetation and precipitation. Another reason why lakes are important in climate research is because they are widely spread over the world, and therefore they can be chosen depending on where the focus of the study will be. In this study, -the Lake Kuchi in the southern part of Taiwan, situated at the boundary between the Asian Mainland and the Western Pacific, was used. What makes this densely populated region of the world particularly interesting for climate research is because it is affected not only by monsoons, but also by typhoons and earthquakes. In this paleoclimate study, a total 16 core sections from three different coring points in the Kuchi Lake were analyzed. The main goal was to clarify if the lake could be used as a reliable climate archive, and also interpret the depositional environment of the sediment layers in the cores. All core sections were described and analyzed with the ITRAX XRF-scanner, which lead to the conclusion that the cores consist of a sedimentary sequence of alternating gray clay and dark gray gyttja clay layers, capped by peat, gyttja or clayey gyttja at topmost part.  By sieving samples from all different layers, it was observed that some dark gyttja clay layers contained terrestrial organic matter, and hard, angular clay clasts that suggest intense rain falls and flash floods as transportation mechanism. The uppermost part of the cores, from 310 cm to the top layers, consist of homogenous clay and in situ organic matter which indicate calmer depositional environments compared to the alternation between dark gyttja clay and homogenous gray clay. LOI-950 data indicate that the carbonate content of the Kuchi Lake is low, since the weight loss during this temperature is insignificant compared to LOI-550, which stood for the majority of the weight loss. Thus, the sediment sequence in the Kuchi Lake consist of alternation of clays deposited in a calm and relatively deep lake, mixed with layers apparently flushed in from land, possibly due to typhoons. This alternation is capped by organic rich layers, including peat, which indicating filling up of the basin, and shallower conditions.
APA, Harvard, Vancouver, ISO, and other styles
5

Kilpatrick, Douglas. "The effects of population growth on Ecosystem services in lake Ekoln : A multi-proxy data analysis of a lake core and historical records." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-128822.

Full text
Abstract:
Throughout human history man has utilized the environment to varying degrees, depending on technology and population. These ¨ecosystem services¨ have suffered sustained degradation over the centuries, resulting in large investments having to be made to prevent and reverse further changes to the environment. Few studies have attempted to quantitatively compare how these changes, occurring long before modern environmental monitoring programs started, affected important ecosystem services such as species diversity, water quality, carbon burial and soil stability. The aims of this study were to i) assess whether human impact on ecosystem services have varied over time in perspective of relative change, and ii) to assess the individual (per capita) contributions. I used multiple sediment proxies from a 6 m C¹⁴-dated core collected from lake Ekoln, South-Central Sweden, to reconstruct environmental changes while tracking the population growth in the city of Uppsala during the last ten centuries. Through the use of pollen and diatom assemblages I reconstructed the changing terrestrial and aquatic diversities over time, while sediment accumulation rates and the X-ray fluorescence spectroscopy of the sediment was used to reconstruct soil stability, carbon burial and water quality, respectively. In the latter case, sediment phosphorus concentrations were used as a proxy for freshwater eutrophication while metals (mercury and lead) were used to infer inputs of toxic pollutants. Finally, I normalized (z) all data to create meta-data. The z-values and reconstructed population for Uppsala made it possible to differentiate 5 unique time periods based on anthropogenic induced change, which were not previously visible in the data, and all of which have been linked to the most likely historical causes, including the Black Death. The results show that the most significant anthropogenic impacts in terms of pollution volume occurred in the 1960s, while the period from 1200-1500 AD saw the most significant environmental change in terms per head of capita, most likely caused by the shift from woodland to open landscape through twiddening, a process of burning forest to create agricultural land, prior to 1500 AD. Moreover, rapid recovery is visible after the implementation of environmental policies from the 1970s onwards.

Full surname: Kilpatrick van Houte

APA, Harvard, Vancouver, ISO, and other styles
6

Rojas, Rodríguez Clara. "Reconstructing the historic input of mercury in Lake Ekoln : A long-term (millennia) perspective derived from a sediment core." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105160.

Full text
Abstract:
Anthropogenic activities are often considered to be the main sources of mercury (Hg) found in aquatic systems. The aim of this study was to reconstruct the historic input of Hg to a large lake (Lake Ekoln) situated downstream the City of Uppsala using a dated sediment core. The main objective was to reveal general long-term (millennia-scale) trend in mercury loadings to the lake assess to what extent the lake has received an increase input of mercury during the last century from atmospheric inputs or local sources (mining activities, hospital effluents, industries or agricultural activities). Sediment samples were analyzed with X-ray fluorescence spectroscopy for measurements of lead and phosphorous (used as a proxy for atmospheric inputs and effluent water, respectively). Total Hg was analyzed using a mercury analyzer. My results indicate high Hg concentrations in sediment of Lake Ekoln during the last three centuries. Hg concentrations was not correlated to atmospheric derived metals (Pb) or effluent water derived nutrients (P) and only weakly correlated to the organic matter content of the sediment. Highest concentrations was found during a period around 1850 and in the last few years. The weak correlation with Pb suggest that the Hg is entering the lake from other sources than atmospheric inputs. The most likely local sources are argued to be mining activities (including fossil fuel burning during the production of iron) or Uppsala university hospital situated upstream of Lake Ekoln. However, there is a large uncertainty regarding the importance of these historical Hg sources for the lake.
APA, Harvard, Vancouver, ISO, and other styles
7

Le, Tran Thai. "Mineralogy of Lake Hotagen Sediments: Variations with Grain Size throughout Vertical Profile of a Sediment Core." Thesis, Umeå universitet, Kemiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160376.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Friedman, Richard M. "Geology and geochronometry of the eocene Tatla Lake metamorphic core complex, western edge of the intermontane belt, British Columbia." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28780.

Full text
Abstract:
The Tatla Lake Metamorphic Complex (TLMC) underlies 1000 km² on the western side of the Intermontane Belt (1MB) northeast of the Yalakom fault Three fault-bounded lithotectonic assemblages are recognized in the area studied: an amphibolite grade gneissic and migmatitic core, structurally overlain by a 1 to 2.5 + km-thick zone of amphibolite and greenschist grade mylonite and ductilely sheared metamorphic rocks, the ductilely sheared assemblage (DSA), which is in turn structurally overlain by weakly deformed to unstrained subgreenschist grade rocks of the upper plate which flank the TLMC on three sides. Structures in the gneissic core include a gneissic foliation and schistosity (Sic), which has been deformed by west to northwest-trending tight to isoclinal folds (F2c). Tectonic fabrics observed throughout the DSA which formed during Ds deformation include a gently dipping mylonitic foliation (Ss), containing a mineral elongation (stretching) lineation (Ls) which trends towards 280° ± 20°. Minor folds of variable trend (Fs), almost exclusively confined to DSA metasedimentary rocks, are interpreted as coeval with ductile shear. Vergence of these folds defines movement sense and direction of top towards 290° ± 20°. Kinematic indicators from DSA rocks which have not been deformed by syn-ductile shear folds indicate a top-to-the-west sense of shear while those deformed by Fs folds yield conflicting results, with a top-to-the-west sense predominating. The entire lower plate comprising the TLMC has been deformed by broad, upright, west to west-northwest trending, shallowly plunging map-scale folds (F3) during D3, which deform Sic and Ss surfaces. The steeply dipping, northwest-trending Yalakom fault truncates all units and structures of the TLMC. Gently to moderately dipping normal faults of Ds and post-D3 relative age are the southern and eastern boundaries between DSA upper plate rocks and 1MB lower plate rocks. U-Pb zircon dates from igneous arid meta- igneous rocks from the lower plate range from Late Jurassic (157 Ma) through Eocene (47 Ma). These dates bracket the timing of Cretaceous (107 Ma to 79 Ma, in the core) and Eocene (55 Ma to 47 Ma, in the DSA) deformation and metamorphism in the lower plate. Biotite and hornblende K-Ai dates of 53.4 Ma to 45.6 Ma for lower plate rocks are in sharp contrast to Jurassic dates from nearby upper plate rocks; they record the uplift and cooling of the TLMC. Whole rock initial ⁸⁷Sr/⁸⁶Sr ratios (and for most samples present-day values) of less ≤0.704 have been determined for igneous and meta-igneous rocks of the TLMC; such values are typical of magmatic arc rocks of the 1MB and Coast Plutonic Complex of B.C. Whole rock major and trace element chemistry of lower plate igneous and meta-igneous rocks indicate sub-alkaline, calcalkaline, volcanic arc affinities. Garnet-biotite temperatures (interpreted as Eocene in age), from pelitic schist in the southern part of the DSA increase from about 400 ± 50 to 650 ± 50 C with increasing structural depth. A GT-BI-QZ-Al₂SiO₅ pressure of 8 ± 3 kb has been calculated for one of these samples. A T-P of 650 ± 50 C and 5.3 ± 3 kb, calculated from inclusions and garnet cores in a small pelitic pendant in the northwest part of the DSA, reflects conditions during intrusion of the surrounding 71 ± 3 Ma igneous body. A pressure of 7.2 ± 1.4 kb, based on the total Al in hornblende, has been calculated for this body. Cretaceous ductile deformation in the gneissic core may be related to folding and thrusting which occured in high level rocks to the west and east of the field area. During Early Eocene time (55-47 Ma) the TLMC acquired the characteristics of a Cordilleran metamorphic core complex. Mylonites of the DSA were emplaced by faulting beneath weakly deformed, low metamorphic grade rocks of the upper plate. Synchronously, metamorphic rocks of the gneissic and migmatitic core of the TLMC were moved to higher crustal levels along the footwall of the DSA normal ductile shear zone. The formation of F3 folds and final uplift of the TLMC (47-35 Ma) is postulated to be the consequence of transpression related to later Eocene dextral motion along the Yalakom fault The TLMC has structural style and timing of deformation similar to metamorphic core complexes in southeastern B.C. Local and regional evidence is consistent with the formation of the TLMC in a regional extensional setting within a vigorous magmatic arc.
Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
APA, Harvard, Vancouver, ISO, and other styles
9

Starr, Lindsay D. "Mercury pollution in an urban and suburban lacustrine system in Summit County, Ohio." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron149434254589456.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Fordyce, Nicholas. "Muddy memories : environmental change at Hluhluwe Imfolozi Game Reserve, KwaZulu-Natal, South Africa - evidence from diatoms." Bachelor's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/26382.

Full text
Abstract:
Diatoms are microscopic algae found in almost all aquatic environments. They are habitat specific and have silica frustules which preserve well in sediments. They have been used extensively to provide a multitude of palaeoecological data relating to pH, nutrient loads and water levels. Here, the diatoms in a lake sediment core from Hluhluwe-Imfolozi, South Africa, are analysed to show fluctuations in littoral to benthic taxa, and brackish to freshwater taxa as indicators of lake level changes over time. Changes in lake level act as a proxy for warm/dry or cold/wet periods over time. During the last 240 years lake levels have remained consistently low but nevertheless indicate four alternating periods of cold/wet and warm/dry climate. From c. A.D. 1770 (the last few decades of the Little Ice Age) to the c. A.D. 1840 the climate was cool and wet, but nonetheless gradually warmed up and became drier. From c. A.D. 1840 through to c. A.D. 1920 a there was a gradual increase in temperature and corresponding decrease in rainfall. Then, from c. A.D. 1920 till c. A.D. 1980 there was another colder, wetter period. Finally, very recently, from around c. A.D. 1980 till the present day, Hluhluwe-Imfolozi has experienced warmer, drier conditions once. Pollution-tolerant diatoms increase during the last 100 years and indicate eutrophication of the lake, a consequence of anthropogenic activity in the region. The diatom sequence from Phindiswene provides a high resolution climatic proxy for the critical period covering the latter stages of the Little Ice Age (LIA), post LIA warming, and recent increasing anthropogenic impacts.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Lake core"

1

Smith, George I. Core OL-92 from Owens Lake, southeast California. [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Smith, George I. Core OL-92 from Owens Lake, southeast California. Edited by Bischoff James L and Geological Survey (U.S.). [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Smith, George I. Core OL-92 from Owens Lake, southeast California. Edited by Bischoff James L and Geological Survey (U.S.). [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Smith, George I. Core OL-92 from Owens Lake, southeast California. Edited by Bischoff James L and Geological Survey (U.S.). [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Smith, George I. Core OL-92 from Owens Lake, southeast California. Edited by Bischoff James L and Geological Survey (U.S.). [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Smith, George I. Core OL-92 from Owens Lake, southeast California. Edited by Bischoff James L and Geological Survey (U.S.). [Menlo Park, Calif.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hattel, Michael D. Test coring with a prototype, 4-inch-diameter, standard-valve core barrel near Pyramid Lake, Nevada. Denver, Colo: Dept. of the Interior, U.S. Geological Survey, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Cahill, Richard A. Assessment of sediment quality in Peoria Lake: Results from the chemical analysis of sediment core samples collected in 1998, 1999, and 2000. Champaign, IL: Illinois State Geological Survey, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Richard, Mary Jacqueline. Pollen analysis of a sediment core from Kelly Lake, Sudbury, Canada. Sudbury, Ont: Laurentian University, School of Graduate Studies, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

SEPM Core Workshop (19th 1994 Denver, Colo.). Lacustrine reservoirs and depositional systems: SEPM Core Workshop No. 19, Denver, June 12, 1994. [Tulsa, Okla.]: SEPM, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Lake core"

1

Thompson, Roy, R. Malcolm Clark, and Geoffrey S. Boulton. "Core Correlation." In Tracking Environmental Change Using Lake Sediments, 415–30. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2745-8_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Khursevich, Galina K., Eugene B. Karabanov, Mikhail I. Kuzmin, Douglas F. Williams, Alexander A. Prokopenko, and Svetlana A. Fedenya. "Diatom Succession in Upper Miocene Sediments of Lake Baikal from the BDP-98 Drill Core." In Long Continental Records from Lake Baikal, 271–82. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-67859-5_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Weinberg, E., I. Weinberg, S. Efremova, A. Tanichev, and Y. Masuda. "Late Pliocene Spongial Fauna in Lake Baikal (from Material from the Deep Drilling Core BDP-96-1)." In Long Continental Records from Lake Baikal, 283–93. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-67859-5_18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Anderson, N. J. "Diatom biostratigraphy and comparative core correlation within a small lake basin." In Paleolimnology IV, 105–12. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4047-5_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nixdorf, Erik. "Modelling Seasonal Groundwater Flow Dynamics in the Poyang Lake Core Region." In Terrestrial Environmental Sciences, 67–88. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97725-6_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Maki, Takeshi, Yoshitaka Hase, Kimiyasu Kawamuro, Koji Shichi, Koji Minoura, Takefumi Oda, and Norio Miyoshi. "Vegetation Changes in the Baikal Region during the Late Miocene Based on Pollen Analysis of the BDP-98-2 Core." In Long Continental Records from Lake Baikal, 123–35. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-67859-5_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kugo, Yoko. "Community Voices, Practices, and Memories in Environmental Communication: Iliamna Lake Yup’ik Place Names, Alaska." In Palgrave Studies in Anthropology of Sustainability, 103–25. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-78040-1_5.

Full text
Abstract:
AbstractThis chapter discusses an environmental communication approach, using certain Indigenous place names as examples of how residents of communities around Iliamna Lake, Alaska, not only use place names to convey environmental and spatial information, but also to emphasize the temporal and spiritual relationships between the people and the land. Place names and stories about these places often reveal local histories and affirm cultural ethics. Elders sharing their feelings and stories about these places with younger generations affirm the residents’ connection to the streams, lakes, and other landmarks in the Iliamna Lake area. Participating in daily activities and sharing oral traditions of the landscape are at the core of the environmental communication used by residents of Iliamna Lake communities to live in harmony with nature.
APA, Harvard, Vancouver, ISO, and other styles
8

Pollingher, U. "Non-siliceous algae in a five meter core from Lake Kinneret (Israel)." In Paleolimnology IV, 213–16. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4047-5_28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Horiuchi, Kazuho, Koichi Kobayashi, Hideo Sakai, Shigehiro Nomura, Hiroyuki Matsuzaki, Atsushi Tanaka, and Yasuyuki Shibata. "Exploratory Studies of Dating the Baikal Drilling Project Sediment Core (BDP-96) Using Cosmogenic 10Be: Observations and Implications of Higher 10Be Concentrations in Sediments Older than 2.7Ma." In Long Continental Records from Lake Baikal, 245–56. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-67859-5_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Loizeau, Jean-Luc, Stéphane Rozé, Christophe Peytremann, Fabrice Monna, and Janusz Dominik. "Mapping Sediment Accumulation Rate by using Volume magnetic Susceptibility Core Correlation in a contaminated Bay (Lake Geneva, Switzerland)." In Lake Systems from the Ice Age to Industrial Time, 73–79. Basel: Birkhäuser Basel, 2003. http://dx.doi.org/10.1007/978-3-0348-7992-7_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Lake core"

1

Feibel, Craig S., Catherine C. Beck, Jeroen H. van der Lubbe, Josephine C. Joordens, Mark J. Sier, Emily J. Beverly, Christopher J. Campisano, and Andrew S. Cohen. "THE LORENYANG LAKE AT KAITIO: OUTCROP AND CORE PERSPECTIVES ON AN EARLY PLEISTOCENE LAKE MARGIN." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-278275.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Buckley, Kasey L., and Jonathan Obrist-Farner. "SEDIMENTOLOGICAL CHARACTERISTICS OF A LAMINATED CORE FROM LAKE IZABAL, EASTERN GUATEMALA." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-336341.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Samant, S. "An exploration of the historic core along Lake Pichola in Udaipur." In STREMAH 2007. Southampton, UK: WIT Press, 2007. http://dx.doi.org/10.2495/str070171.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Edmundson, Tomas, and Kevin Theissen. "LAKE CORE HISTORIES OF HUMAN IMPACTS ON TWIN CITIES METRO AREA LAKES OVER THE LAST TWO CENTURIES." In Joint 118th Annual Cordilleran/72nd Annual Rocky Mountain Section Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022cd-374203.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Weidhaas, Nicholas, Arielle Woods, Donald Rodbell, Darren Larsen, Mark B. Abbott, and Rob Hatfield. "THE TIMING AND MAGNITUDE OF LATE PLEISTOCENE AND HOLOCENE LAKE LEVEL CHANGE FROM A PAIRED CARBONATE δ18O - STRATIGRAPHY RECORD OF A CORE TRANSECT IN LAKE JUNIN, PERU." In Joint 52nd Northeastern Annual Section and 51st North-Central Annual GSA Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017ne-290751.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Getch, Seth J., Kyle G. Hansen, Michael L. Griffiths, Stefanie A. Brachfeld, Tim Greendyk, Michael DaSilva, Michael Sebetich, and Richard Pardi. "DEGLACIAL CLIMATE VARIABILITY IN NORTHERN NEW JERSEY INFERED FROM A LAKE SEDIMENT CORE." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-271847.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Jakeway, Jackson, Kathleen C. Benison, and Jonathan P. Knapp. "TESTING THE PLEISTOCENE LAKE OTERO HYPOTHESIS: PRELIMINARY FINDINGS FROM A WHITE SANDS CORE." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-320547.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Xuan Fu-hua and Zang Shu-ying. "Characteristics of heavy meatals and nutrients of core Huoshaohei sediments in Lianhuan lake." In 2010 International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2010. http://dx.doi.org/10.1109/mace.2010.5535835.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Dilworth, John, Callia J. Cortese, Michael McGlue, Ryan Thigpen, Kevin Yeager, Edward W. Woolery, and Summer J. Brown. "PRELIMINARY HIGH RESOLUTION SEISMIC STRATIGRAPHIC AND SEDIMENT CORE INVESTIGATION OF JACKSON LAKE (WYOMING)." In Joint 56th Annual North-Central/ 71st Annual Southeastern Section Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022nc-375614.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Streib, Laura, Simon J. Armitage, and Christopher A. Scholz. "A NEW LUMINESCENCE DATED AGE MODEL FOR 1.3 MA LAKE MALAWI DRILL CORE." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-382928.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Lake core"

1

King, J. W., and C. Gibson. Paleomagnetic analysis of Lake Winnipeg core 122a. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207510.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Brooks, G. R. Thickness record of varves from glacial Ojibway Lake recovered in sediment cores from Frederick House Lake, northeastern Ontario. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329275.

Full text
Abstract:
The thicknesses of 384 rhythmic couplets were measured along a composite sequence of glacial Lake Ojibway glaciolacustrine deposits recovered in two sediment cores from Frederick House Lake, Ontario. The visual comparison of distinctive couplets in the CT-scan radiographs of the Frederick House core samples to photographs of core samples from Reid Lake show a match of ±1 varve number from v1656-v1902, and ±5 varve numbers between v1903-v2010, relative to the regional numbering of the Timiskaming varve series. There are two interpretations for the post-v2010 couplets that fall within the Connaught varve sequence of the regional series. In the first, the interpreted numbering spans from v2066-v2115, which produces a gap of 55 missing varves equivalent to v2011-v2065, and corresponds to the original interpretation of the Connaught varve numbering. The second spans v2011a-v2060a, and represents alternative (a) numbering for the same varves. Varve thickness data are listed in spreadsheet files (.xlsx and .csv formats), and CT-Scan radiograph images of core samples are laid out on a mosaic poster showing the interpreted varve numbering and between-core sample correlations of the varve couplets.
APA, Harvard, Vancouver, ISO, and other styles
3

Telka, A. M. Radiocarbon dating of Lake Winnipeg 99-900 core 9. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2003. http://dx.doi.org/10.4095/214549.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Telka, A. M., and G. R. Brooks. Macrofossil reports from core MUS1, Muskrat Bay, lower French River area, and core DPN2, Depensier Lake, North Bay, Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2008. http://dx.doi.org/10.4095/225740.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Last, W. M. Bulk composition, texture, and mineralogy of Lake Winnipeg core and surface grab samples. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207511.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hamblin, A. P. Paskapoo groundwater study part VIII: Detailed core measured sections of the Paskapoo Formation in two cores at Sylvan Lake, Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2010. http://dx.doi.org/10.4095/285363.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Stepner, D. A. J., B A Kjarsgaard, R. A. Knight, H. A. J. Russell, and D. R. Sharpe. A chemostratigraphic characterization of Newmarket Till in drill core from north of Lake Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2020. http://dx.doi.org/10.4095/321097.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Friske, P. W. B., and M. W. McCurdy. Results of a detailed infill lake-sediment survey in the Snow Lake area: evaluation and comparison of grab sample and short core data. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207590.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Galloway, J. M., M. Bringué, S D Buryak, A. V. Reyes, C K West, and P. A. Siver. Palynological analyses of maar lake sediments from core samples of Wombat kimberlite pipe, Northwest Territories, Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329615.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Koch, J. W. II, F. D. Martin, and G. P. Friday. Results of submerged sediment core sampling and analysis on Par Pond, Pond C, and L Lake: July 1995. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/474878.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography