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Добірка наукової літератури з теми "Contact aureole"

Автор: Grafiati
Опубліковано: 10 березня 2023

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Статті в журналах з теми "Contact aureole"

1

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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Анотація:
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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2

Shawwa, Nabil A., Robert P. Raeside, David W. A. McMullin, and Christopher R. M. McFarlane. "Employing contact metamorphism to assess the conditions of pluton emplacement and timing of recrystallization in southwestern Kellys Mountain, Cape Breton Island, Nova Scotia." Canadian Journal of Earth Sciences 54, no. 11 (November 2017): 1165–78. http://dx.doi.org/10.1139/cjes-2017-0052.

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At Kellys Mountain, Cape Breton Island, Nova Scotia, the late Neoproterozoic Glen Tosh formation (a low-grade metapsammite–metapelite unit of the George River Metamorphic Suite) has been intruded by diorite, granodiorite, and granite plutons, and the diorite hosts a narrow contact metamorphic aureole. New mapping and sampling in the contact aureole reveals that the metasedimentary rocks have reached amphibolite-facies metamorphism resulting in the development of neoformed biotite, muscovite, cordierite, ilmenite, garnet, andalusite, sillimanite, monazite, and spinel within the meta-pelite, a mineral assemblage also found in the Kellys Mountain Gneiss as a result of low-pressure regional metamorphism. Neoformed minerals and the disappearance of foliation defines a contact metamorphic aureole within 300 m of the pluton contacts. Petrographic and microprobe analyses of equilibrium assemblages in metapelitic units of the contact aureole yielded metamorphic pressures of 250 MPa, implying an intrusion depth of ∼9 km, with temperatures ranging from 365 to 590 °C. The presence of earlier-formed andalusite and garnet indicates the rocks may have initially undergone a low-pressure regional metamorphic event prior to contact metamorphism. Monazite in the contact aureole was dated using in-situ U–Pb methods and yielded an age of 480.9 ± 3.7 Ma, interpreted as the time of formation of the contact metamorphic aureole.
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Selyatitskii, A. Yu, O. P. Polyansky, and R. A. Shelepaev. "A High-Pressure Thermal Aureole of the Bayan-Kol Gabbro–Monzodiorite Intrusion (Western Sangilen, Southeastern Tuva): Evidence for Lower-Crust Mafic Magma Chambers." Russian Geology and Geophysics 62, no. 9 (September 1, 2021): 987–1005. http://dx.doi.org/10.2113/rgg20194157.

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Abstract —Thermal metamorphism produced an aureole near the early Paleozoic Bayan-Kol gabbro–monzodiorite intrusion in the Erzin shear zone of western Sangilen (Tuva–Mongolia microcontinent, Central Asian Orogenic Belt). Field observation of intrusive contact, structure–textural and mineral transformations of metamorphic rocks, regular changes in the chemical composition of minerals with approaching the intrusive contact, and high temperature gradient from intrusive to wallrocks verified the occurrence of a contact aureole near the Bayan-Kol intrusion. The high-gradient thermal metamorphism (M2) affected garnet–staurolite–kyanite schists that formed during earlier regional metamorphism (M1) at 6.2–7.9 kbar and 600–670 ºC. The 0.5 km wide M2 metamorphic aureole mapped along the northwestern intrusion margin consists of a muscovite–sillimanite zone adjacent to the sedimentary country rocks and a cordierite–K-feldspar zone on the side of the intrusion. The M2 metamorphic reactions occurred within the granulite facies temperature range 880–910 ºC along the contact with monzodiorites and at ~950 ºC along the boundary with gabbronorites; the temperature on the aureole periphery was about 640 ºC. Pressure estimates indicate deep-seated high-grade metamorphism at 6.9–7.8 kbar, while the intrusion itself crystallized at 7.7–7.8 kbar. The suggested numerical model implying the formation of a thermal aureole at a depth of 26 km (7 kbar) in the lower crust is consistent with the temperature pattern determined by geothermobarometry for several key points of the metamorphic zoning and confirms its deep-level origin. Thus, the aureole near the Bayan-Kol intrusion represents a rare case of contact metamorphism in the lower continental crust. The obtained results, along with published petrological and geochronological evidence, reveal two depth levels of the early Paleozoic M2 metamorphism in the Sangilen area: upper (7–15 km, 2–4 kbar) and lower (26–30 km, 7–8 kbar) crust. The Bayan-Kol gabbro–monzodiorite intrusion is likely a small apophysis or a fragment of a deep-crust intermediate magma chamber, while the moderate-pressure (7–8 kbar) M2 granulites in the Erzin shear zone are products of high-gradient metamorphism related to the Cambrian–Ordovician collisional mafic magmatism in the Sangilen area.
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Mouchos, E., L. Papadopoulou, B. J. Williamson, and G. Christofides. "MARIALITIC SCAPOLITE OCCURENCES FROM THE KIMMERIA-LEFKOPETRA METAMORPHIC CONTACT, XANTHI (N. GREECE)." Bulletin of the Geological Society of Greece 50, no. 4 (July 28, 2017): 1943. http://dx.doi.org/10.12681/bgsg.14244.

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Анотація:
Emplacement of the Xanthi Plutonic Complex within the Rhodope Massif of N. Greece created an extensive metamorphic aureole around the plutonite. The aureole contains two areas of intense scapolitization in the contacts between granodiorite and biotitegneiss and between monzonite and sandstone, the latter cross-cut by andesite dykes. This paper reports the results of a mineralogical and geochemical study into the formation of the scapolites and particularly the nature of the plutonite-derived hydrothermal fluids from which scapolites were formed.
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FESTA, VINCENZO, ALFREDO CAGGIANELLI, ANTONIO LANGONE, and GIACOMO PROSSER. "Time–space relationships among structural and metamorphic aureoles related to granite emplacement: a case study from the Serre Massif (southern Italy)." Geological Magazine 150, no. 3 (November 16, 2012): 441–54. http://dx.doi.org/10.1017/s0016756812000714.

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AbstractTectonic and thermal perturbations, related to emplacement of granodiorite in the upper continental crust, have been investigated in the late-Hercynian basement exposed in southern Calabria (Italy). Here, the structural aureole is marked by the presence of a major rim fold adjacent to the intrusive contact for a length of at least 20 km. Geometrical analysis of the structural aureole and related foliations, lineations and crenulations reveals that the perturbed zone is at least 3000 m wide and characterized by an open synform trending nearly parallel to the intrusive contact. This pattern is compatible with a laccolith-like mode of magma emplacement, related to the accretion of the pluton that shouldered weak phyllitic and slaty wall rocks. The metamorphic aureole, about 1800 m wide, is characterized by biotite, cordierite and andalusite that appear sequentially in spotted schists and hornfelses approaching the intrusive contact. The peak assemblage equilibrated between 535 and 590°C at pressures between 175 and 200 MPa, confirmed by Al-in-hornblende barometry on granodiorite. Microstructural analysis allowed the inference of a time lag between the thermal and tectonic perturbations. With the aid of thermal modelling it was possible to quantify the time required to reach the peak temperature at a distance from the intrusive contact where cordierite spots and andalusite porphyroblasts clearly overprint crenulations. This estimate represents the time limit to accomplish deformation in the inner portion of the aureole and thus indicates a minimum strain rate of 4 × 10−14 s−1 within the country rocks during granodiorite intrusion.
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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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HIRAJIMA, Takao, Daisuke NAKAMURA, and Katsushi SHIRAHATA. "Winchite from Mt. Hiei contact aureole, Kyoto, Japan." Journal of Mineralogical and Petrological Sciences 95, no. 6 (2000): 107–12. http://dx.doi.org/10.2465/jmps.95.107.

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Ings, S. J., and J. V. Owen. "‘Decompressional’ reaction textures formed by isobaric heating: an example from the thermal aureole of the Taylor Brook Gabbro Complex, western Newfoundland." Mineralogical Magazine 66, no. 6 (December 2002): 941–51. http://dx.doi.org/10.1180/0026461026660069.

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Abstract Reaction textures including corona structures in granulites from the Proterozoic Long Range Inlier of western Newfoundland are spatially associated with a Silurian (0.34 Ga) mafic intrusion, the Taylor Brook Gabbro Complex. They comprise, in metabasites and tonalitic gneiss, coronal orthopyroxene and plagioclase on garnet and, in metapelites, cordierite and spinel formed at the expense of sillimanite, garnet and quartz. Although generally interpreted to indicate near-isothermal decompression (ITD) following regional metamorphism, which in the inlier occurred at ˜1.10–1.03 Ga, these features appear to be absent elsewhere. Therefore they are interpreted to be products of contact metamorphism (near-isobaric heating – IBH) within the thermal aureole of the gabbro. Thus, there is a ˜0.7 Ga difference (i.e. mid-Proterozoic vs. mid-Silurian) between the age of the regional metamorphic mineral assemblages and the contact aureole assemblages. The observation that classic ITD features occur in this aureole environment underscores the fact that P-sensitive reactions can progress during IBH as well as by pressure release.
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Jamieson, R. A., G. G. Hart, G. G. Chapman, and N. W. Tobey. "The contact aureole of the South Mountain Batholith in Halifax, Nova Scotia: geology, mineral assemblages, and isograds." Canadian Journal of Earth Sciences 49, no. 11 (November 2012): 1280–96. http://dx.doi.org/10.1139/e2012-058.

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The contact aureole at the eastern margin of the South Mountain Batholith (Halifax Pluton) underlies most of the city of Halifax, Nova Scotia. The Halifax Group in the study area includes two lithological units, the Cunard and Bluestone formations. Before intrusion, both had been affected by greenschist facies regional metamorphism and deformed into northeast–southwest-trending, regional upright folds associated with a strong slaty cleavage. Contact metamorphic isograds trend obliquely across the Halifax peninsula, at a high angle to regional structural trends. At 2.5–3 km from the intrusive contact, sparse cordierite spots mark the outer limit of the contact aureole. The biotite-in isograd is marked by the development of biotite within chlorite + muscovite stacks inherited from regional metamorphism. Pyrrhotite is the dominant sulphide mineral throughout the contact aureole. With increasing metamorphic grade, assemblages in both units are marked by increasing modal abundance of cordierite and biotite, with K-feldspar variably developed within ca. 600 m of the contact. However, there is a marked difference in the distribution and appearance of andalusite between the two units. In aluminous pelites of the Cunard formation, idioblastic chiastolite appears before biotite more than 1500 m from the contact. In the less aluminous Bluestone formation, andalusite is present only within ca. 500 m of the contact, where it forms xenoblastic, spongy crystals. In both units, the assemblage andalusite + biotite + K-feldspar ± cordierite is developed near the contact, with local fibrolite and evidence of incipient partial melting. Petrographic constraints suggest pressure–temperature conditions at the contact of ca. 2.5–3.0 kbar (1 kbar = 100 MPa) at ca. 650 °C.
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Park, Youngdo, and Changwhan Oh. "CONTACT2: A Macintosh program for calculating heat conduction in a contact aureole." Computers & Geosciences 24, no. 9 (November 1998): 901–4. http://dx.doi.org/10.1016/s0098-3004(97)00135-0.

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Дисертації з теми "Contact aureole"

1

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

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2

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
unrestricted
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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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Dahmani, Amar. "Développement des auréoles de contact d'oulmès et de ment (Maroc central) : étendue, zones métamorphiques et histoires de réchauffement et de refroidissement /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1995. http://theses.uqac.ca.

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Книги з теми "Contact aureole"

1

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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2

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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3

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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4

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

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5

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

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Частини книг з теми "Contact aureole"

1

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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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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Deviatiiarova, A. S. "Monticellite from Spurrite Marbles of the Kochumdek Contact Aureole." In Springer Proceedings in Earth and Environmental Sciences, 35–42. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-23390-6_5.

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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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6

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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7

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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8

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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9

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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10

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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Тези доповідей конференцій з теми "Contact aureole"

1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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Анотація:
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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10

Wettstein, Hans E. "80 Years Open GT Development in Baden." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90177.

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Abstract On 07.07.1939 the Neuchatel gas turbine passed its performance test under the supervision of Aurel Stodola [1]. This was the world’s first open gas turbine for electric power generation in commercial operation. It launched the past eighty year period of further development and corresponding market growth. The Baden area played an important role. The aim of this paper is to complete the already published comprehensive historical information with two additional aspects especially regarding the second 40 years, in which the author was an involved contemporary witness: The first is how the predominance of something like a local spirit integrated both a considerable share of foreign engineering staff and also the changes of the ownership of the technology from Brown Boveri to ABB and then to Alstom and recently to GE and Ansaldo. The second aspect is the inside view of the author, who has both shaped and suffered these gas turbine developments in several job positions allowing direct contact to both top management and shop floor workers. These two aspects will be integrated in the historical sequence. As a rule the roles of the persons acting after the seventies are given but not their names. The history of the involved companies has caught much attention of media and writers. After the formation of ABB it was used for both celebrating outstanding management performance and despicable management mistake. I will add as an engineer my insider view to this and mention the corresponding book references. This paper is limited to the mainstream open GT development for space reasons and therefore omits other interesting side developments of BBC such as closed Helium cycles, IGCC applications and compressed air energy storage as well as the other products of BBC, which all played a role in equalizing the business cycles.
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