Results 31 to 40 of about 2,556 (192)

Seismische und petrologische Untersuchungen der Lithosphäre in der Schwarmbeben- und CO2 Entgasungs-Region Vogtland/NW-Böhmen [PDF]

open access: yes, 2005
, Zusammenfassung, Contents, List of figures and plates, List of tables, List of abbreviations and symbols A Introduction and scope of this study 1 A.1 The European Cainozoic Rift System and associated intraplate volcanic fields 1
Geissler, Wolfram Hartmut
core   +1 more source

Mineral chemistry and geothermobarometry of metabasites of the Majerad igneous-metamorphic complex (SE of Shahrood)

open access: yesJournal of Economic Geology, 2020
Introduction Thermobarometric models based on the chemical equilibrium among coexisting mineral-mineral or mineral-melts pairs are useful tools widely used to estimate the P-T path and chemical evolution during igneous processes. The high sensitivity of
Marzieh Veiskarami   +3 more
doaj   +1 more source

Mineral chemistry and geothermobarometry of gabbroic dykes ‎of the Garmab Ophiolite sequence ‎‎(Northeast of Kamyaran)‎ [PDF]

open access: yesپترولوژی, 2018
The Garmab ophiolite complex, a part of the Ophiolite-Radiolithic zone of Kermanshah, is located in the northeast of Kamyaran. In view of the Iranian geo-structural zones, this complex is situated between the Sanandaj-Sirjan Zone and the Zagros thrust ...
shahryar Mahmoudi   +2 more
doaj   +1 more source

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

open access: yes, 2019
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto   +6 more
core   +1 more source

Lithospheric 3D gravity modelling using upper-mantle density constraints: Towards a characterization of the crustal configuration in the North Patagonian Massif area, Argentina [PDF]

open access: yes, 2017
The North Patagonian Massif is an Argentinean plateau that has an average height of 1200 m and stands from 500 to 700 m above the neighboring areas. During Paleogene, it suffered a sudden uplift of more than 1200 m without noticeable internal deformation;
Aragon, Eugenio   +5 more
core   +2 more sources

Ultra-high temperature metamorphism in the Guaxupé Complex: a lower crust segment

open access: yesBrazilian Journal of Geology, 2020
The area is located at the northern boundary of the Guaxupé Complex, which corresponds to the northern domain of the Socorro-Guaxupé Nappe, in the Southern Brasília Orogen, close to the Varginha Shear Zone.
Thaís Güitzlaf Leme   +2 more
doaj   +1 more source

Petrology, geothermobarometry and geochemistry of granulite facies wall rocks and hosting gneiss of gemstone deposits from the Mogok area (Myanmar)

open access: yesJournal of Asian Earth Sciences: X, 2023
The Mogok Metamorphic Belt (MMB) of Myanmar formed during the Paleogene collision between the West Burma block and the Shan-Thai block. The MMB is mainly composed of medium to high-grade metamorphic marble, calc-silicate rocks, gneiss, quartzite ...
Myint Myat Phyo   +5 more
doaj   +1 more source

Table Cape vent xenolith suite, northwest Tasmania: Mineralogy and implications for crust-mantle lithology and Miocene geotherms in Tasmania. [PDF]

open access: yes, 2005
The Miocene Table Cape vent erupted a diverse mantle-crust xenolith suite within its fractionated nephelinitic matrix. Assemblages include mantle metaperidotites, garnet-metawebsterites and rarer garnet-metadinopyroxenitcs, garnct-mctawehrlites ...
Pogson, RE, Raynor, LR, Sutherland, FL
core   +3 more sources

MORB-derived amphibolites in the Paleozoic basement of the Aluminé Igneous-Metamorphic Complex, Neuquén, Argentina: Decoding its genesis, P-T evolution and pre-Andean regional correlations

open access: yesGeologica Acta, 2019
Amphibolites included in the metapelitic sequence and as xenoliths in intrusive magmatic rocks outcropping in the southern sector of the Aluminé Igneous-Metamorphic Complex (AIMC), Neuquén, Argentina, are studied in detail in order to determine their ...
I. URRAZA, S. DELPINO, L. GRECCO
doaj   +3 more sources

Mineral compositional constraints on the petrogenesis of gabbroic and monzodioritic rocks in Rangpur District, NW Bangladesh

open access: yesJournal of Asian Earth Sciences: X, 2023
This research deals with the petrography and mineral chemistry of gabbroic and monzodioritic rocks to characterize the minerals, including their genesis and tectonic evolution.
Ismail Hossain   +6 more
doaj   +1 more source

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