Relevant bibliographies by topics / Contact aureoles

Academic literature on the topic 'Contact aureoles'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Contact aureoles"

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Owen, J. Victor. "Cordierite + spinel parageneses in pelitic gneiss from the contact aureoles of the Mistastin batholith (Quebec) and the Taylor Brook gabbro complex (Newfoundland)." Canadian Journal of Earth Sciences 28, no. 3 (March 1, 1991): 372–81. http://dx.doi.org/10.1139/e91-034.

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The contact aureoles of the Mistastin batholith and the Taylor Brook gabbro complex contain cordierite + spinel-bearing assemblages derived from quartz-, K-feldspar-, sillimanite-, garnet-, and biotite-bearing pelitic gneiss. Andalusite occurs locally. As a result of continuous, cordierite-forming reactions, garnet and biotite have recrystallized to relatively Fe-rich compositions compared with their counterparts outside the aureoles.Mosaics of fine-grained cordierite and spinel replace sillimanite and biotite throughout the Mistastin aureole. Similar assemblages and textures are preserved in metapelite in the outer part of the Taylor Brook aureole, where garnet adjacent to sillimanite is replaced by cordierite + spinel. The formation of spinel-free cordierite porphyroblasts by garnet-, sillimanite-, biotite-, and quartz-consuming reactions depleted metapelites in both aureoles in quartz, permitting the formation of the undersaturated assemblages. The undersaturated cordierite + spinel assemblages formed on a domainal scale (individually, a few hundred cubic millimetres in volume) and coexist metastably with saturated assemblages elsewhere in the same rock. Peak temperatures (700–750 °C) determined for both aureoles were insufficient to stabilize quartz + spinel parageneses owing to the low gahnite content of the oxide (ZnO < 2 wt.%).Metapelites in the innermost part of the Taylor Brook aureole appear to have been desilicified by the formation and fractionation of anatectic melt, yielding migmatitic rocks virtually devoid of quartz and K-feldspar. In contrast, migmatite in the inner part of the Mistastin aureole retains a quartz + two-feldspar mineralogy, so, as in the nonmigmatitic paragneiss, undersaturated assemblages are present only on a domainal scale.These aureole rocks demonstrate that undersaturated assemblages are not only characteristic of thermally- recrystallized low-grade pelites but also can occur in contact aureoles developed in granulite-facies paragneiss. Aluminous rocks can become undersaturated by subsolidus, quartz-consuming reactions yielding cordierite, or by the formation of anatectic liquids.
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Müller, Thomas, Lukas P. Baumgartner, C. T. Foster, and Torsten W. Vennemann. "Metastable prograde mineral reactions in contact aureoles." Geology 32, no. 9 (2004): 821. http://dx.doi.org/10.1130/g20576.1.

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Rowan, Lawrence C., Carmen Anton‐Pacheco, David W. Brickey, Marguerite J. Kingston, Alba Payas, Norma Vergo, and James K. Crowley. "Digital classification of contact metamorphic rocks in Extremadura, Spain, using Landsat thematic mapper data." GEOPHYSICS 52, no. 7 (July 1987): 885–97. http://dx.doi.org/10.1190/1.1442359.

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Landsat Thematic Mapper (TM) images of an extensively cultivated part of Extremadura, Spain, have been used to distinguish soil developed on contact metamorphic rocks in aureoles around late Hercynian granitic plutons from soil formed on stratigraphically equivalent Late Proterozoic slate and metagraywacke that has been regionally metamorphosed to the greenschist facies. Reflectance spectra of contact metamorphic soil have lower reflectance, especially in the 1.6 μm wavelength region, and weaker Al‐OH, Mg‐OH, and [Formula: see text] absorption features than do spectra of the slate‐metagraywacke soil. These spectral differences are attributed to highly absorbing carbonaceous material in the contact metamorphic soil that was subjected to high temperatures during emplacement of the plutons. These spectral reflectance differences are evident in a density‐sliced TM band 5 image, in color‐ratio composite images that incorporate TM 4 : 5, 4 : 3, and 3 : 1 ratios, and in principal‐component composite images. Digital classification of the numerous tilled, vegetation‐free fields was used to map the contact metamorphic soil in an August, 1984, TM scene of the Caceres study area. First, TM 4 : 3 was used to identify these fields. Then ranges of TM 5 and TM 3 : 1 values were determined for selected tilled fields within and outside the contact aureoles. Field evaluation of a classification map based on TM 5 plus TM 3 : 1 shows more extensive aureoles than published geologic maps and few misclassified areas. Similar results were achieved using TM 4 : 5 instead of TM 5. This approach was subsequently used to map two linear zones of contact metamorphic rocks in the San Nicolas mine area where only two small exposures of granite have been documented. Landsat Multispectral Scanner (MSS) images can also be used to map contact aureoles in the study areas, but extensive field evaluation is required because of more frequent misclassification.
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HOLNESS, M. B. "Contact metamorphism and anatexis of Torridonian arkose by minor intrusions of the Rum Igneous Complex, Inner Hebrides, Scotland." Geological Magazine 136, no. 5 (September 1999): 527–42. http://dx.doi.org/10.1017/s0016756899002988.

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Significant volumes of partial melt developed in the arkosic contact aureoles of two of the numerous mafic and ultramafic minor intrusions found in the northern parts of the Isle of Rum, Scotland. Melting was essentially static, with little movement of melt even on a thin-section scale, and no segregation. The relative proportions of (now inverted) tridymite and high quartz inferred to have crystallized in the silica primary-phase field constrain the pressure of metamorphism to 150 ± 50 bars. Melting attained 95 vol. %, and occurred up to 15 m from the contact with the 50 m diameter gabbro plug. Melting around the adjacent 200 m diameter peridotite plug reached ≈ 70 vol. %, and occurred up to 6 m from the contact. Simple thermal models for the two aureoles, based on the isograds given by the onset of melting, the breakdown of chlorite and the disordering of microcline, support the hypotheses that the peridotite plug was injected as a crystal-rich mush close to its solidus, whereas the gabbro plug was a relatively long-lived feeder conduit. Time scales for the melting events are of the order of forty years for the aureole of the gabbro and ten years for that surrounding the peridotite body. The melt distribution resulting from the heating part of the thermal history is controlled by reaction, and is far from textural equilibrium. Crystallization was abrupt, being complete in ten years for the gabbro, and in only four for the peridotite, resulting in a fine-grained cotectic intergrowth and preservation of the melt distribution.
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Zhou, Mei-Fu, John Malpas, Paul T. Robinson, and Peter H. Reynolds. "The dynamothermal aureole of the Donqiao ophiolite (northern Tibet)." Canadian Journal of Earth Sciences 34, no. 1 (January 1, 1997): 59–65. http://dx.doi.org/10.1139/e17-005.

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Metamorphic rocks found at the base of the Jurassic Donqiao ophiolite of northern Tibet are interpreted as a basal dynamothermal aureole produced during obduction of the massif. The rocks form a sequence some 8 m thick, varying from high-grade amphibolites at the contact with overlying harzburgites to greenschist facies metasedimentary rocks lower down. The mineral paragenesis is similar to other such aureoles, and indicates that temperatures in excess of 750 °C may have been reached during metamorphism. The lack of high-pressure minerals suggests that the rocks were produced by subcretion in a relatively shallow dipping subduction zone. Ar–Ar geochronology on amphibole separates provides dates of 175–180 Ma for the displacement of the ophiolite, significantly older than the age of emplacement estimated from stratigraphie relationships. The ophiolite was clearly obducted very soon after its formation in a suprasubduction zone environment.
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Ferry, John M., and Douglas Rumble III. "Formation and destruction of periclase by fluid flow in two contact aureoles." Contributions to Mineralogy and Petrology 128, no. 4 (August 14, 1997): 313–34. http://dx.doi.org/10.1007/s004100050312.

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van den Kerkhof, Alfons M., and Geoffrey H. Grantham. "Metamorphic charnockite in contact aureoles around intrusive enderbite from Natal, South Africa." Contributions to Mineralogy and Petrology 137, no. 1-2 (October 15, 1999): 115–32. http://dx.doi.org/10.1007/s004100050586.

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Marfin, Alexander E., Alexei V. Ivanov, Vadim S. Kamenetsky, Adam Abersteiner, Tamara Yu Yakich, and Timur V. Dudkin. "Contact Metamorphic and Metasomatic Processes at the Kharaelakh Intrusion, Oktyabrsk Deposit, Norilsk-Talnakh Ore District: Application of LA-ICP-MS Dating of Perovskite, Apatite, Garnet, and Titanite." Economic Geology 115, no. 6 (September 1, 2020): 1213–26. http://dx.doi.org/10.5382/econgeo.4744.

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Abstract The Norilsk-Talnakh ore district in the northwestern Siberian platform contains globally unique reserves of Cu-Ni-sulfides with Pt and, especially, Pd. The Oktyabrsk deposit, which is one of the largest in the district, is spatially and genetically associated with the Kharaelakh mafic-ultramafic intrusion and its exceptionally large metamorphic and metasomatic aureoles. In this study, we employed in situ laser ablation-inductively coupled plasma-mass spectrometry U-Pb isotope dating of apatite, titanite, garnet, and perovskite that cocrystallize with disseminated sulfides within the aureole of metasomatic and contact metamorphic rocks. The calculated isotopic ages for apatite (257.3 ± 4.5 and 248.9 ± 5.1 Ma), titanite (248.6 ± 6.8 and 249.1 ± 2.9 Ma), garnet (260.0 ± 11.0 Ma), and perovskite (247.3 ± 8.2 Ma), though with large uncertainties, indicate that sulfide mineralization within metasomatic and contact-metamorphic rocks is coeval with the emplacement of the Kharaelakh intrusion. These isotopic dates are in complete agreement with the published isotope dilution-thermal ionization mass spectrometry U-Pb zircon ages for the Norilsk intrusions and, at the same time, notably older than available Re-Os isochron ages of sulfides. The latter ages have been long interpreted as evidence for a prolonged duration of magmatic ore-forming processes; however, our data narrow their life span. Trace elements in titanite and garnet allow distinguishing late- and postmagmatic grains, which show indistinguishable U-Pb isotope ages.
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Cui, Xiaojun, Peter I. Nabelek, and Mian Liu. "Heat and fluid flow in contact metamorphic aureoles with layered and transient permeability, with application to the Notch Peak aureole, Utah." Journal of Geophysical Research: Solid Earth 106, B4 (April 10, 2001): 6477–91. http://dx.doi.org/10.1029/2000jb900418.

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VOLDMAN, GUSTAVO G., GUILLERMO L. ALBANESI, and MARGARITA DO CAMPO. "Conodont palaeothermometry of contact metamorphism in Middle Ordovician rocks from the Precordillera of western Argentina." Geological Magazine 145, no. 4 (March 27, 2008): 449–62. http://dx.doi.org/10.1017/s001675680800455x.

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AbstractThe Yerba Loca Formation (Middle–Upper Ordovician), exposed in the Western Precordillera, San Juan, Argentina, is made up of clastic–carbonate turbidites, and basic–ultrabasic rocks. It is affected by regional Siluro-Devonian very low-grade metamorphism that locally reaches greenschist facies. At Ancaucha creek, 45 conodont samples were taken from two sections that include 30 to 50 m thick sills. In order to analyse the thermal alteration patterns produced by these intrusive bodies, conodont Colour Alteration Index (CAI) is contrasted with optical petrography and X-ray diffraction analyses of clay minerals. The intrusions are dated as post-Darriwilian (Da2), as determined by conodont biostratigraphy of the host rock, which indicates theParoistodus horridusSubzone of theLenodus variabilisZone. The distribution of CAI values defines a thermal aureole of about 2.5 times intrusion thickness that prevailed over the later very low-grade metamorphism. Metasomatism at Ancaucha creek is recorded by CAI values of 4 to 7, particularly restricted to a few layers close to the intrusions, as indicated by conodont textures and rock fabric. One-dimensional thermal computer simulation conforms to empirical data indicating temperatures greater than 600 °C for the contact zone, although it points out slightly narrower thermal aureoles. The clay mineral assemblage of most of the analysed samples (chlorite, illite, smectite and I/S mixed-layers) is complex and probably derives from several superimposed processes, thus representing non-equilibrium assemblages. In turn, KI values (0.27–0.32) indicate anchizone metamorphism, in agreement with regional CAI values of 4; consequently, the occurrence of smectite and I/S probably resulted from retrograde diagenesis processes.
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Dissertations / Theses on the topic "Contact aureoles"

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Osaki, Atsushi. "Cordierite porphyroblast in contact aureole." 京都大学 (Kyoto University), 2000. http://hdl.handle.net/2433/181129.

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Åström, Ossian. "Sulfide Mineralogy in the Ballachulish contact metamorphic Aureole." Thesis, Stockholms universitet, Institutionen för geologiska vetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-87237.

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16 samples of increasing metamorphic grade from the Ballachulish Igneous Complex and Aureole, located in the west of Scotland, were studied in order to analyze the sulfide mineralogy and to what extent they were affected by contact metamorphism. The samples were collected from two lithologies, the Creran Succession and the Ballachulish Slate lithology, as well as from the igneous complex. The sulfides of main interest in the samples are pyrite and pyrrhotite. At the onset of contact metamorphism, pyrite disappears while pyrrhotite gets more abundant as metamorphic grade increases. Pyrrhotite also undergoes multiple changes such as 1) elongation and thinning of the grains, 2) development of 120° grain-boundaries, 3) development of pyrite-zones within the pyrrhotite and 4) the decomposition of pyrrhotite and alignment of pyrite along its grain-boundaries at high temperature. The elongation of the grains occurs in both the Creran Succession and the Ballachulish Slate. The rest of the textures, however, can only be found in the Creran Succession. The two lithologies differ by the high graphite content in the Ballachulish Slate. The elongated grains as well as the pyrite inclusions in the pyrrhotite both are strong evidence of recrystallization. The absence of pyrite in the Ballachulish Slate was most probably caused by the buffering properties of the graphite-rich fluid in these rocks, causing more reducing conditions. There is evidence against a heavy, pervasive fluid flow through the aureole. However, the inner contact zone seems to have been affected by a more pronounced fluid flow. This could have been caused by the metamorphic fluid working in conjunction with fluids released from the intrusion. Regarding the mobility of S in the aureole, no strong evidence could be found, other than the decomposition of pyrrhotite grain-boundaries in the high-grade metamorphic samples.
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DeBuhr, Christopher Leonard. "Metamorphic petrology and mass balance analysis in the Bugaboo contact aureole." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0019/NQ49488.pdf.

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Mangan, Lee S. "Equilibrium and disequilibrium aspects of contact metamorphism : the Ross of Mull granite aureole, Scotland." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295820.

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Cui, Xiaojun. "Numerical modeling of reactive fluid flow in the Notch Peak contact metamorphic aureole, Utah /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060092.

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Babu, E. V. S. S. K. "Petrological studies on the Chimakurti gabbro-anorthosite-olivine-clinopyroxenite complex and its contact aureole, India." Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243040.

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Mavimbela, Philane Knowledge. "Metamorphism in the contact aureole of the eastern limb of the Bushveld complex, South Africa." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/41190.

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The 2.06 to 2.054 Ga Bushveld Igneous Complex intruded into the sedimentary rocks of the Transvaal Supergroup and generated an extensive contact metamorphic aureole mainly developed in the upper Pretoria group. The studied samples represent the Silverton Daspoort and Timeball Hill formations and are divisible into garnet bearing hornfels (DY918, DY954 and DY956) and garnet-free staurolite-bearing metapelites (DY916, DY982 and DY987). The garnet-bearing hornfelses marks the garnet zone within the aureole and the garnet formation is controlled by different reactions forming from 490 to 630 0C. On the other hand, the garnet free staurolite-bearing Fe-Al rich metapelites define the staurolite zone restricted to the Timeball Hill formation. The recorded P-T conditions in G0 and G1 garnets of the DY954 hornfels imply that the two garnets formed under different conditions indicating two stages of metamorphism. However, the Lu-Hf isotope systematics of these garnets records a 2061 Ma age for all garnet porphyroblasts in both the DY918 and DY954 hornfelses, which support co-genetic garnet growth regardless of their stratigraphic positions. Therefore, the 2061 Ma garnet age denote the emplacement age of the Lower Zone and Critical Zone magmas which was synchronous with the extrusion of the Rooiberg Group volcanics. The fact that all analysed garnets do not record the 2059 – 2054 intrusion of the Main Zone and Upper Zone magmas probably means that the crystallisation temperatures of the later magma pulse was not significant enough to shift the Lu-Hf isotopic signatures. Euhedral staurolites are widespread within the Fe-Al rich metapelites with grain sizes of up 4mm; texturally the majority of them have been altered or overgrown by biotite and chloritoid. The alteration or of these staurolite porphyroblasts is due to isobaric cooling during uplift, and the St-Bt assemblage represent the peak equilibrium conditions and marks the upper stability limit of the Chl-Ctd assemblage.
Dissertation (MSc)--University of Pretoria, 2013.
gm2014
Geology
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Stephenson, Sarah K. Nabelek Peter Igor. "Fluid inclusion evidence for the nature of fluids associated with recrystallization of quartzites in the EJB contact Aureole, California." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/5338.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on January 15, 2010). Thesis advisor: Dr. Peter Nabelek. Includes bibliographical references.
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Homam, Seyed Massoud. "A chemical and textural study of aluminium silicate bearing rocks from the contact aureole of the Ardara Pluton, Co. Donegal, Ireland." Thesis, University of Liverpool, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367981.

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Gerdes, Martha Lynn. "Fluid flow in contact aureoles with spatially heterogeneous permeabilities implications from stochastic models and stable isotopic evidence from carbonates /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/35697486.html.

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Books on the topic "Contact aureoles"

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1927-, Voll G., ed. Equilibrium and kinetics in contact metamorphism: The Ballachulish Igneous Complex and its aureole. Berlin: Springer-Verlag, 1991.

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Seifert, Friedrich, David R. M. Pattison, Gerhard Voll, and Jutta Töpel. Equilibrium and Kinetics in Contact Metamorphism: The Ballachulish Igneous Complex and Its Aureole. Springer Berlin / Heidelberg, 2014.

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Seifert, Friedrich, David R. M. Pattison, Gerhard Voll, and Jutta Töpel. Equilibrium and Kinetics in Contact Metamorphism: The Ballachulish Igneous Complex and Its Aureole. Springer London, Limited, 2012.

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Topel, D. R. M. Equilibrium and Kinetics in Contact Metamorphism: The Ballachulish Igneous Complex and Its Aureole. Springer, 1991.

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Voll, G. Equilibrium and Kinetics in Contact Metamorphism: The Ballachulish Igneous Complex and Its Aureole. Springer, 1991.

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Book chapters on the topic "Contact aureoles"

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London, David, George B. Morgan, and Michael B. Wolf. "Chapter 7. BORON IN GRANITIC ROCKS AND THEIR CONTACT AUREOLES." In Boron, edited by Lawrence M. Anovitz and Edward S. Grew, 299–330. Berlin, Boston: De Gruyter, 1996. http://dx.doi.org/10.1515/9781501509223-009.

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Paterson, S. R., R. H. Vernon, and T. K. Fowler. "Chapter 13. AUREOLE TECTONICS." In Contact Metamorphism, edited by Derrill M. Kerrick, 673–722. Berlin, Boston: De Gruyter, 1991. http://dx.doi.org/10.1515/9781501509612-016.

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Barton, M. D., J. M. Staude, E. A. Snow, and D. A. Johnson. "Chapter 14. AUREOLE SYSTEMATICS." In Contact Metamorphism, edited by Derrill M. Kerrick, 723–848. Berlin, Boston: De Gruyter, 1991. http://dx.doi.org/10.1515/9781501509612-017.

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Joesten, Raymond, and Stephen R. van Horn. "Numerical Modeling of Calcite Coarsening in the Aureoles of En Echelon Dikes: Analysis of the Kinetic Control of Isograd Geometry in Contact Metamorphism." In Growth, Dissolution and Pattern Formation in Geosystems, 109–41. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9179-9_5.

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Pattison, D. R. M. "P-T-a(H2O) Conditions in the Thermal Aureole." In Equilibrium and Kinetics in Contact Metamorphism, 327–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76145-4_16.

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Hoernes, S., S. MacLeod-Kinsel, R. S. Harmon, D. Pattison, and D. F. Strong. "Stable Isotope Geochemistry on the Intrusive Complex and Its Metamorphic Aureole." In Equilibrium and Kinetics in Contact Metamorphism, 351–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76145-4_17.

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Harte, B., D. R. M. Pattison, S. Heuss-Aβbichler, S. Hoernes, L. Masch, and S. Weiss. "Evidence of Fluid Phase Behaviour and Controls in the Intrusive Complex and Its Aureole." In Equilibrium and Kinetics in Contact Metamorphism, 405–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76145-4_19.

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Moorcroft, David, and Nicolas Tonnelier. "Contact Metamorphism of Black Shales in the Thermal Aureole of a Dolerite Sill Within the Karoo Basin." In Origin and Evolution of the Cape Mountains and Karoo Basin, 75–84. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40859-0_8.

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Hobson, Alice, François Bussy, and Jean Hernandez. "Migmatitic Gabbros From a Shallow-Level Metamorphic Contact Aureole, Fuerteventura Basal Complex, Canary Islands: Role of Deformation in Melt Segregation." In Physics and Chemistry of Partially Molten Rocks, 209–27. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4016-4_7.

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"(contact) aureole." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 284. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_34421.

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Conference papers on the topic "Contact aureoles"

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Broadwell, Kirkland, Mark Caddick, and Summer Caton. "CONSTRAINING THE HIGH-TEMPERATURE POLYMETAMORPHIC HISTORY OF THE MARTINSVILLE CONTACT AUREOLE." In 66th Annual GSA Southeastern Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017se-290624.

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Siron, Guillaume, Robert Bodner, Lukas Baumgartner, Benita Putlitz, Torsten Vennemann, and Othmar Müntener. "LIMITED FLUID FLOW IN THE TORRES DEL PAINE CONTACT AUREOLE (PATAGONIA, CHILE)." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286181.

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Beno, Carl J., Michael A. Stearns, John R. Bowman, and John M. Bartley. "U/TH-PB MONAZITE AGE CONSTRAINTS ON THE TIMING AND DURATION OF CONTACT METAMORPHISM IN THE ALTA, UTAH, CONTACT AUREOLE." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-307663.

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Dutrow, Barbara L., and Darrell J. Henry. "BLACKENED SMACKOVER: CONTACT METAMORPHIC AUREOLE SURROUNDING AN ALKALI IGNEOUS DIKE IN THE SUBSURFACE OF NORTHERN LOUISIANA." In 50th Annual GSA South-Central Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016sc-273976.

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Beno, C. J., J. R. Bowman, J. W. Valley, and K. Kitajima. "ELEMENTAL AND ISOTOPIC INDICATORS OF INFILTRATION-DRIVEN METAMORPHISM IN FORSTERITE FROM THE ALTA, UTAH CONTACT AUREOLE." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286291.

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Leuchter, Ethan, and Wenrong Cao. "INVESTIGATING THE CONTACT AUREOLE AND EMPLACEMENT MECHANISMS OF AN UPPER CRUSTAL ULTRAMAFIC PLUTON NEAR EMIGRANT GAP, CALIFORNIA." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-370649.

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Bonin, Pieter G., and James R. Rougvie. "LITHOLOGICAL CONTROLS OF FLUID FLOW DURING METAMORPHISM OF THE MAROON FORMATION IN THE WHITEROCK PLUTON CONTACT AUREOLE, COLORADO." In Joint 53rd Annual South-Central/53rd North-Central/71st Rocky Mtn GSA Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019sc-327812.

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Lafay, Romain, and Lukas Baumgartner. "MINERAL AND ROCK TEXTURES ACCOMPANYING THE ANTIGORITE BREAKDOWN TO FORSTERITE + TALC IN THE BERGELL CONTACT AUREOLE (ITALIAN ALPS)." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-288049.

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Ren, Kangxu, Junfeng Zhao, Jian Zhao, and Xilong Sun. "Using Logging and Seismic Data to Identify Boundaries Between Different OWC Units in a Deepwater Carbonate Reservoirs." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21438-ms.

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Abstract:
Abstract At least three very different oil-water contacts (OWC) encountered in the deepwater, huge anticline, pre-salt carbonate reservoirs of X oilfield, Santos Basin, Brazil. The boundaries identification between different OWC units was very important to help calculating the reserves in place, which was the core factor for the development campaign. Based on analysis of wells pressure interference testing data, and interpretation of tight intervals in boreholes, predicating the pre-salt distribution of igneous rocks, intrusion baked aureoles, the silicification and the high GR carbonate rocks, the viewpoint of boundaries developed between different OWC sub-units in the lower parts of this complex carbonate reservoirs had been better understood. Core samples, logging curves, including conventional logging and other special types such as NMR, UBI and ECS, as well as the multi-parameters inversion seismic data, were adopted to confirm the tight intervals in boreholes and to predicate the possible divided boundaries between wells. In the X oilfield, hundreds of meters pre-salt carbonate reservoir had been confirmed to be laterally connected, i.e., the connected intervals including almost the whole Barra Velha Formation and/or the main parts of the Itapema Formation. However, in the middle and/or the lower sections of pre-salt target layers, the situation changed because there developed many complicated tight bodies, which were formed by intrusive diabase dykes and/or sills and the tight carbonate rocks. Many pre-salt inner-layers diabases in X oilfield had very low porosity and permeability. The tight carbonate rocks mostly developed either during early sedimentary process or by latter intrusion metamorphism and/or silicification. Tight bodies were firstly identified in drilled wells with the help of core samples and logging curves. Then, the continuous boundary were discerned on inversion seismic sections marked by wells. This paper showed the idea of coupling the different OWC units in a deepwater pre-salt carbonate play with complicated tight bodies. With the marking of wells, spatial distributions of tight layers were successfully discerned and predicated on inversion seismic sections.
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