Academic literature on the topic 'Archean ocean'

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 'Archean ocean.'

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 "Archean ocean"

1

Crowe, S. A., C. Jones, S. Katsev, et al. "Photoferrotrophs thrive in an Archean Ocean analogue." Proceedings of the National Academy of Sciences 105, no. 41 (2008): 15938–43. http://dx.doi.org/10.1073/pnas.0805313105.

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

Busigny, Vincent, Noah J. Planavsky, Didier Jézéquel, et al. "Iron isotopes in an Archean ocean analogue." Geochimica et Cosmochimica Acta 133 (May 2014): 443–62. http://dx.doi.org/10.1016/j.gca.2014.03.004.

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

Sharma, S. Das, D. J. Patil, R. Srinivasan, and K. Gopalan. "Very high18o enrichment in Archean cherts from South India: implications for Archean ocean temperature." Terra Nova 6, no. 4 (1994): 385–90. http://dx.doi.org/10.1111/j.1365-3121.1994.tb00511.x.

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

Harrison, C. G. A. "Constraints on ocean volume change since the Archean." Geophysical Research Letters 26, no. 13 (1999): 1913–16. http://dx.doi.org/10.1029/1999gl900425.

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

Habicht, K. S. "Calibration of Sulfate Levels in the Archean Ocean." Science 298, no. 5602 (2002): 2372–74. http://dx.doi.org/10.1126/science.1078265.

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

Busigny, Vincent, Oanez Lebeau, Magali Ader, Bryan Krapež, and Andrey Bekker. "Nitrogen cycle in the Late Archean ferruginous ocean." Chemical Geology 362 (December 2013): 115–30. http://dx.doi.org/10.1016/j.chemgeo.2013.06.023.

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

Avila-Alonso, Dailé, Jan M. Baetens, Rolando Cardenas, and Bernard De Baets. "Assessing the effects of ultraviolet radiation on the photosynthetic potential in Archean marine environments." International Journal of Astrobiology 16, no. 3 (2016): 271–79. http://dx.doi.org/10.1017/s147355041600032x.

Full text
Abstract:
AbstractIn this work, the photosynthesis model presented by Avilaet al. in 2013 is extended and more scenarios inhabited by ancient cyanobacteria are investigated to quantify the effects of ultraviolet (UV) radiation on their photosynthetic potential in marine environments of the Archean eon. We consider ferrous ions as blockers of UV during the Early Archean, while the absorption spectrum of chlorophyllais used to quantify the fraction of photosynthetically active radiation absorbed by photosynthetic organisms. UV could have induced photoinhibition at the water surface, thereby strongly affec
APA, Harvard, Vancouver, ISO, and other styles
8

Nishizawa, Manabu, Takuya Saito, Akiko Makabe, et al. "Stable Abiotic Production of Ammonia from Nitrate in Komatiite-Hosted Hydrothermal Systems in the Hadean and Archean Oceans." Minerals 11, no. 3 (2021): 321. http://dx.doi.org/10.3390/min11030321.

Full text
Abstract:
Abiotic fixation of atmospheric dinitrogen to ammonia is important in prebiotic chemistry and biological evolution in the Hadean and Archean oceans. Though it is widely accepted that nitrate (NO3−) was generated in the early atmospheres, the stable pathways of ammonia production from nitrate deposited in the early oceans remain unknown. This paper reports results of the first experiments simulating high-temperature, high-pressure reactions between nitrate and komatiite to find probable chemical pathways to deliver ammonia to the vent–ocean interface of komatiite-hosted hydrothermal systems and
APA, Harvard, Vancouver, ISO, and other styles
9

Sleep, Norman H. "Archean plate tectonics: what can be learned from continental geology?" Canadian Journal of Earth Sciences 29, no. 10 (1992): 2066–71. http://dx.doi.org/10.1139/e92-164.

Full text
Abstract:
Some basic questions about Archean plate tectonics can be addressed by examining accretionary Archean margins, in particular fault zones with significant strike-slip components on the Canadian Shield. (1) Were the oceanic plates typically rigid like modern plates? Yes. Significant lateral viscosity contrasts in the lithosphere between plates and plate boundaries are required for major strike-slip faults to exist. Conversely, strike-slip faults are a kinematic consequence of rigid plates. (2) Did large oceanic plates exist in the Archean? Probably. First, the length and offset of the longest pr
APA, Harvard, Vancouver, ISO, and other styles
10

Olson, Haley C., Nadja Drabon, and David T. Johnston. "Oxygen isotope insights into the Archean ocean and atmosphere." Earth and Planetary Science Letters 591 (August 2022): 117603. http://dx.doi.org/10.1016/j.epsl.2022.117603.

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

Dissertations / Theses on the topic "Archean ocean"

1

Koeksoy, Elif [Verfasser], and Andreas [Akademischer Betreuer] Kappler. "Biogeochemical Fe-S-cycling in a late Archean and Proterozoic ocean model habitat - the high alpine Arvadi Spring / Elif Koeksoy ; Betreuer: Andreas Kappler." Tübingen : Universitätsbibliothek Tübingen, 2018. http://d-nb.info/1198973374/34.

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

Aquila, Quentin. "Explorer la géochimie des océans archéens avec les Formations de fer rubanées (BIF) : apport des compositions isotopiques Hf-Nd-Pb." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0054.

Full text
Abstract:
Les Formations de fer Rubanées (BIF) sont des archives sédimentaires uniques pour étudier les océans primitifs de l'Archéen. Cependant, l'environnement de formation et les mécanismes en jeu dans la formation de ces sédiments chimiques riches en fer et en silicium sont peu contraints. Les BIF ont été très peu étudiés pour leurs compositions isotopiques en Nd-Hf alors qu'elles pourraient permettre d'apporter de nouvelles contraintes sur les sources hydrothermales et continentales alimentant les anciens océans. Pour mieux contraindre l'environnement de formation des BIF, j'ai combiné des aspects
APA, Harvard, Vancouver, ISO, and other styles
3

Mayaga-Mikolo, Francis. "Chronologie des evenements sedimentaires, magmatiques et tectono-metamorphiques du precambrien d'afrique centrale occidentale (gabon) : tectogenese ogooue et heritage archeen." Clermont-Ferrand 2, 1996. http://www.theses.fr/1996CLF21824.

Full text
Abstract:
Le precambrien du gabon est compose de terrains archeens des massifs du nord-gabon et du chaillu, des formations reputees d'age paleoproterozoique de l'ogooue, des sediments paleoproterozoiques du francevillien, des plutons d'age eburneen du mayombe (ou chaine ouest-congolienne). Des datations radiometriques (pb-pb, u-pb, rb-sr et sm-nd, ar-ar) ont ete utilisees afin de contraindre l'age des evenements sedimentaires, magmatiques, tectoniques et metamorphiques qui ont affecte ces differentes entites. L'etude geochronologique montre que l'accretion des terrains paleoproterozoiques se fait autour
APA, Harvard, Vancouver, ISO, and other styles
4

Barbeau, David Longfellow Jr. "Application of Growth Strata and Detrital-Zircon Geochronology to Stratigraphic Architecture and Kinematic History." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/244092.

Full text
Abstract:
Growth strata analysis and detrital-zircon geochronology are useful applications of stratigraphy to tectonic problems. Whereas both tools can contribute to kinematic analyses of supracrustal rock bodies, growth strata are also useful for analyzing the influence of tectonics on stratigraphic architecture. This study reports: 1) a conceptual model for growth strata development; 2) stratigraphic and kinematic analyses of growth strata architectures from growth structures in southeastern Utah, the Gulf of Mexico, and northeastern Spain; and 3) the detrital-zircon geochronology of the Salinian bloc
APA, Harvard, Vancouver, ISO, and other styles
5

Lincoln, Sara Ann Lincoln Ph D. Massachusetts Institute of Technology. "Molecular studies of the sources and significance of archaeal lipids in the oceans." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/84916.

Full text
Abstract:
Thesis (Ph. D. in Geochemistry)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Marine archaea are ubiquitous and abundant in the modem oceans and have a geologic record extending >100 million years. However, factors influencing the populations of the major clades - chemolithoautotrophic Marine Group I Thaumarchaeota (MG-I) and heterotrophic Marine Group II Euryarchaeota (MG-II) - and their membrane lipid signatures are not well understood. Here, I paired techn
APA, Harvard, Vancouver, ISO, and other styles
6

Halter, Ghislaine. "Zonalite des alterations dans l'environnement des gisements d'uranium associes a la discordance du proterozoique moyen (saskatchewan, canada)." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13078.

Full text
Abstract:
Cette etude porte sur les conditions des gisements d'uranium du saskatchewan de la region de waterbury lake, qui sont associes a la discordance entre le socle archeen/aphebien et la couverture sedimentaire helikienne. Deux episodes tardi-hudsoniens gouvernent la remobilisation in situ de l'uranium: une retromorphose (facies schiste vert) et une alteration hydrothermale affectant les zones tectonisees du socle. Les donnees isotopiques des phyllites revelent que la diagenese des gres est realisee en presence d'une saumure qui est egalement a l'origine du fluide mineralisateur
APA, Harvard, Vancouver, ISO, and other styles
7

Cámara, Mor Patricia. "Radionuclides in the Arctic Ocean: tracing sea ice origin, drifting and interception of atmospheric fluxes." Doctoral thesis, Universitat Autònoma de Barcelona, 2012. http://hdl.handle.net/10803/123297.

Full text
Abstract:
El Océano Ártico está caracterizado por la presencia de una cobertura de hielo marino, cuya extensión varía entre verano e invierno. El hielo marino incorpora material particulado y especies químicas asociadas (nutrientes, metales, contaminantes, etc.) durante su formación en las plataformas continentales. A lo largo de su ciclo de vida, diversos procesos físicos, químicos y biológicos determinan la concentración tanto de sedimentos del hielo marino (SIS) como de las especies químicas atrapados a ellos. Durante su deriva desde la costa a la cuenca ártica, el hielo intercepta/acumula especies q
APA, Harvard, Vancouver, ISO, and other styles
8

Yamaguchi, Kosei. "Geochemistry of Archean-Paleoproterozoic black shales the early evolution of the atmosphere, oceans, and biosphere /." 2002. http://www.etda.libraries.psu.edu/theses/approved/PSUonlyIndex/ETD-128/index.html.

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

Books on the topic "Archean ocean"

1

Enright, Joseph F. Shinano!: The sinking of Japan's secret supership. Bodley Head, 1987.

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

Enright, Joseph F. Shinano!: The sinking of Japan's secret supership. Xing Guang, 1987.

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

La Busqueda De Archelon/ the Search for Archelon. Alfaguara, 2006.

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

Robinson, Carol. Phytoplankton Biogeochemical Cycles. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199233267.003.0005.

Full text
Abstract:
This chapter describes how the activity of phytoplankton, bacteria, and Archaea drive the marine biogeochemical cycles of carbon, nitrogen, and phosphorus, and how climate driven changes in plankton abundance and community composition influence these biogeochemical cycles in the North Atlantic Ocean and adjacent seas. Carbon, nitrogen, and phosphorus are essential elements required for all life on Earth. In the marine environment, dissolved inorganic carbon, nitrogen, and phosphorus are utilized during phytoplankton growth to form organic material, which is respired and remineralized back to i
APA, Harvard, Vancouver, ISO, and other styles
5

Money, Nicholas P. 6. Microbial ecology and evolution. Oxford University Press, 2014. http://dx.doi.org/10.1093/actrade/9780199681686.003.0006.

Full text
Abstract:
Many ecosystems are wholly microbial and the activities of microorganisms provide the biochemical foundation for plant and animal life. ‘Microbial ecology and evolution’ describes how plants depend upon the complex redox reactions of microbes that fertilize the soil by fixing nitrogen, converting nitrites to nitrates, enhancing the availability of phosphorus and trace elements, and recycling organic matter. Eukaryotic microorganisms are similarly plentiful and essential for the sustenance of plants and animals. Bacteria, archaea, and single-celled eukaryotes are the masters of the marine envir
APA, Harvard, Vancouver, ISO, and other styles
6

Kirchman, David L. Community structure of microbes in natural environments. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198789406.003.0004.

Full text
Abstract:
Community structure refers to the taxonomic types of microbes and their relative abundance in an environment. This chapter focuses on bacteria with a few words about fungi; protists and viruses are discussed in Chapters 9 and 10. Traditional methods for identifying microbes rely on biochemical testing of phenotype observable in the laboratory. Even for cultivated microbes and larger organisms, the traditional, phenotype approach has been replaced by comparing sequences of specific genes, those for 16S rRNA (archaea and bacteria) or 18S rRNA (microbial eukaryotes). Cultivation-independent appro
APA, Harvard, Vancouver, ISO, and other styles
7

Kirchman, David L. The nitrogen cycle. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198789406.003.0012.

Full text
Abstract:
Nitrogen is required for the biosynthesis of many cellular components and can take on many oxidation states, ranging from −3 to +5. Consequently, nitrogen compounds can act as either electron donors (chemolithotrophy) or electron acceptors (anaerobic respiration). The nitrogen cycle starts with nitrogen fixation, the reduction of nitrogen gas to ammonium. Nitrogen fixation is carried out only by prokaryotes, mainly some cyanobacteria and heterotrophic bacteria. The ammonium resulting from nitrogen fixation is quickly used by many organisms for biosynthesis, being preferred over nitrate as a ni
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Archean ocean"

1

Shen, Yanan, Daniele L. Pinti, and Ko Hashizume. "Biogeochemical cycles of sulfur and nitrogen in the Archean ocean and atmosphere." In Archean Geodynamics and Environments. American Geophysical Union, 2006. http://dx.doi.org/10.1029/164gm19.

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

Volk, Tyler, and Martin I. Hoffert. "Ocean Carbon Pumps: Analysis of Relative Strengths and Efficiencies in Ocean-Driven Atmospheric CO2 Changes." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0099.

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

Hsü, Kenneth J., and Judith A. Mckenzie. "A “Strangelove” Ocean in the Earliest Tertiary." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0487.

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

Wenk, T., and U. Siegenthaler. "The High-Latitude Ocean as a Control of Atmospheric CO2." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0185.

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

Mclean, Dewey M. "Mantle Degassing Induced Dead Ocean in the Cretaceous-Tertiary Transition." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0493.

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

Herring, James R. "Charcoal Fluxes into Sediments of the North Pacific Ocean: The Cenozoic Record of Burning." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0419.

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

Peterson, L. C., and W. L. Prell. "Carbonate Preservation and Rates of Climatic Change: An 800 KYR Record from the Indian Ocean." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0251.

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

Toggweiler, J. R., and J. L. Sarmiento. "Glacial to Interglacial Changes in Atmospheric Carbon Dioxide: The Critical Role of Ocean Surface Water in High Latitudes." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0163.

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

Curry, W. B., and G. P. Lohmann. "Carbon Deposition Rates and Deep Water Residence Time in the Equatorial Atlantic Ocean Throughout the Last 160,000 Years." In The Carbon Cycle and Atmospheric CO2 : Natural Variations Archean to Present. American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm032p0285.

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

Takai, Ken, Fumio Inagaki, and Koki Horikoshi. "Distribution of unusual archaea in subsurface biosphere." In The Subseafloor Biosphere at Mid-Ocean Ridges. American Geophysical Union, 2004. http://dx.doi.org/10.1029/144gm23.

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

Conference papers on the topic "Archean ocean"

1

Lambrecht, Nicholas, Elizabeth Swanner, Chad Wittkop, Cody Sheik, and Sergei Katsev. "MICROBIAL COMMUNITIES OF TWO ARCHEAN OCEAN ANALOGS." In 52nd Annual North-Central GSA Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018nc-312978.

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

Zheng, Xin-Yuan, Aaron M. Satkoski, Brian L. Beard, Thiruchelvi R. Reddy, Nicolas J. Beukes, and Clark M. Johnson. "TRACING OF THE COUPLED SI AND FE CYCLE IN THE ARCHEAN OCEAN." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-300243.

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

Hinz, Isaac L., Christine Nims, Christine Nims, et al. "FERRIC IRON CATALYZES THE FORMATION OF IRON-RICH SILICATES UNDER ARCHEAN OCEAN-LIKE CONDITIONS." In 54th Annual GSA North-Central Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020nc-347861.

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

Johnson, Aleisha C., Stephen J. Romaniello, Chadlin M. Ostrander, Christopher T. Reinhard, Timothy W. Lyons, and Ariel D. Anbar. "ASSESSING THE BIOAVAILABILITY OF MO IN ARCHEAN OCEANS." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-341070.

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

Katsev, Sergei, Mojtaba Fakhraee, Emily Hyde, Madelyn Petersen, Cody Sheik, and Kathryn Schreiner. "Sulfide, Sulfite, and Sulfate Production from Organic Sulfur in Archean Oceans and Modern Lakes." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1256.

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

Osterhout, Jeffrey T., and Andrew D. Czaja. "STABLE ISOTOPE GEOCHEMISTRY OF A LATE ARCHEAN MICROBIAL ECOSYSTEM: DIVERSITY IN THE PRE-GOE OCEANS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-307829.

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

Ribeiro, Elton J. B., Edson Luiz Labanca, Cesar Bartz, and Andre Iwane. "Tubarão Martelo Field Development: Lazy S Riser Configuration Using Mid Water Arch (MWA)." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41873.

Full text
Abstract:
Mid-Water Arches (MWAs) have been used as alternative to distributed buoyancy systems in flexible riser designs worldwide. Those structures usually involve complex lifting requirements for installation, as the Buoyancy Tank Assemblies (BTAs) are lightweight compared to its volume and footprint area. Handling those odd-sized structures in the deck of a construction vessel and crossing the splash-zone are frequently challenging engineering tasks. This paper will present a case study of MWA installation performed by GE/WSC as part of the OGX Tubarão Martelo field development, offshore Brazil. The
APA, Harvard, Vancouver, ISO, and other styles
8

Murray, John J., Harish Mukundan, Apurva Gupta, and Guibog Choi. "Dry Disconnectable Riser System for Low Keel Clearance Floaters." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79734.

Full text
Abstract:
Fixed structures operating in extreme offshore environments (eg: arctic) have to resist and survive the challenging conditions like large ice forces. On the other hand, the floating systems in such environments benefit from their ability to be evacuated and transported in the event of severe condition. However, such an ice-management scheme requires the moorings and risers to be disconnected in the severe conditions and reconnected during more clement conditions. Among the floater designs typically considered for extreme offshore applications is the Spar. The Spar offers low extreme motion res
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Archean ocean"

1

Mueller, C., S. J. Piercey, M. G. Babechuk, and D. Copeland. Stratigraphy and lithogeochemistry of rocks from the Nugget Pond Deposit area, Baie Verte Peninsula, Newfoundland. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328989.

Full text
Abstract:
Stratigraphic and lithogeochemical data were collected from selected drill core from the Nugget Pond gold deposit in the Betts Cove area, Newfoundland. The stratigraphy consists of a lower unit of basaltic rocks that are massive to pillowed (Mount Misery Formation). This is overlain by sedimentary rocks of the Scrape Point Formation that consist of lower unit of turbiditic siltstone and hematitic cherts/iron formations (the Nugget Pond member); the unit locally has a volcaniclastic rich-unit at its base and grades upwards into finer grained volcaniclastic/turbiditic rocks. This is capped by ba
APA, Harvard, Vancouver, ISO, and other styles
2

Thomas, M. D. Magnetic and gravity characteristics of the Thelon and Taltson orogens, northern Canada: tectonic implications. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329250.

Full text
Abstract:
Differences of opinion concerning the relationship between the Thelon tectonic zone and the Taltson magmatic zone, as to whether they are individual tectonic elements or two independent elements, have generated various plate tectonic models explaining their creation. Magnetic and gravity signatures indicate that they are separate entities and that the Thelon tectonic zone and the Great Slave Lake shear zone form a single element. Adopting the single-element concept and available age dates, a temporally evolving plate tectonic model of Slave-Rae interaction is presented. At 2350 Ma, an Archean
APA, Harvard, Vancouver, ISO, and other styles
3

Barbie, Alexander. ARCHES Digital Twin Framework. GEOMAR, 2022. http://dx.doi.org/10.3289/sw_arches_core_1.0.0.

Full text
Abstract:
In the Helmholtz Future Project ARCHES (Autonomous Robotic Networks to Help Modern Societies) with a consortium of partners from AWI (Alfred- Wegener-Institute Helmholtz Centre for Polar and Marine Research), DLR (German Aerospace Center), KIT (Karlsruhe Institute of Technology), and the GEOMAR (Helmholtz Centre for Ocean Research Kiel), several Digital Twins of ocean observation systems were developed by the GEOMAR and AWI. The ARCHES Digital Twin Framework is one of the results of this project. The software is based on the Robot Operating System (ROS) and is written in Python.
APA, Harvard, Vancouver, ISO, and other styles
4

Mueller, C., S. J. Piercey, M. G. Babechuk, and D. Copeland. Stratigraphy and lithogeochemistry of the Goldenville horizon and associated rocks, Baie Verte Peninsula, Newfoundland. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328990.

Full text
Abstract:
The Goldenville horizon in the Baie Verte Peninsula is an important stratigraphic horizon that hosts primary (Cambrian to Ordovician) exhalative magnetite and pyrite and was a chemical trap for younger (Silurian to Devonian) orogenic gold mineralization. The horizon is overlain by basaltic flows and volcaniclastic rocks, is intercalated with variably coloured argillites and cherts, and underlain by mafic volcaniclastic rocks; the entire stratigraphy is cut by younger fine-grained mafic dykes and coarser gabbro. Lithogeochemical signatures of the Goldenville horizon allow it to be divided into
APA, Harvard, Vancouver, ISO, and other styles
5

Sommer, Stefan, Sascha Flögel, Michael Walter, and Frank Wenzhöfer. Autonomous Robotic Network to Resolve Coastal Oxygen Dynamics : Cruise No. AL547, 20.10. – 31.10.2020, Kiel – Kiel, ARCODYN. GEOMAR Helmholtz Centre for Ocean Research Kiel, 2022. http://dx.doi.org/10.3289/cr_al547.

Full text
Abstract:
The ALKOR cruise AL547 represents a concluding milestone of the Helmholtz innovation project ARCHES (Autonomous Robotic Networks to Help Modern Societies). The aim was to implement a heterogeneous robotic sensing network to simultaneously monitor changes in the water column and at the seafloor. The network has been developed by a consortium of partners from AWI, DLR, GEOMAR and the University of Kiel. The participating sensing platforms allow for real-time data transfer and the entire network shall be able to autonomously respond to environmental changes in the ocean. The network comprised sev
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!