Results 61 to 70 of about 65,526 (293)

Mineralogical evolution of the northern Bossoroca ophiolite, São Gabriel terrane

Brazilian Journal of Geology, 2020
Mineralogical evolution of ophiolites is significant to understand paleo-oceanic crust and mantle requiring multi-proxy techniques to identify steps in the processes. We studied the Bossoroca ophiolite from the southern Brasiliano Orogen, a prime example
Amanda Juliano Massuda, Léo Afraneo Hartmann, Gláucia Nascimento Queiroga, Marco Paulo de Castro, Carolina Gonçalves Leandro, Jairo Francisco Savian   +5 more
doaj   +1 more source

Active megadetachment beneath the western United States [PDF]

, 2008
Geodetic data, interpreted in light of seismic imaging, seismicity, xenolith studies, and the late Quaternary geologic history of the northern Great Basin, suggest that a subcontinental-scale extensional detachment is localized near the Moho.
Allmendinger, Anders, Axen, Beaumont, Beghoul, Bell, Bell, Bennett, Bennett, Bennett, Bergman, Bergman, Berthe, Bills, Block, Brace, Brian Wernicke, Brodie, Brodie, Brodie, Buck, Buck, Burchfiel, Caskey, Catchings, Christiansen, Christiansen, Cook, Davis, Davis, Davis, DeCelles, Demouchy, dePolo, Dixon, Dokka, Dragert, Ducea, Ducea, Dueker, Dumond, Elósegui, England, England, Flack, Flesch, Flesch, Fountain, Fountain, Frankel, Freed, Friedrich, Friedrich, Gan, Gashawbeza, Glazner, Goetze, Gourmelen, Gripp, Gripp, Hales, Hammond, Hammond, Hauge, Hauser, Hetland, Hey, Hey, Hirth, Hobbs, Hobbs, Holbrook, Holbrook, Humphreys, Humphreys, Humphreys, Jackson, James L. Davis, Jarchow, Jones, Jordan, Katayama, Kelemen, Klemperer, Klemperer, Kostoglodov, Kruse, Lachenbruch, Le Pourhiet, Lee, Lerch, Liu, Louie, Lowry, Lowry, Lowry, Luedke, Machette, Maggi, McGeary, McKenzie, McKenzie, McQuarrie, Melbourne, Melbourne, Miller, Miller, Molnar, Nathan A. Niemi, Niemi, Okada, Oldow, Oldow, Oldow, Pancha, Park, Parsons, Passchier, Peter Luffi, Pollitz, Potter, Regenauer-Lieb, Regenauer-Lieb, Reheis, Reston, Roy, Rutter, Saleeby, Saltzer, Savage, Schellart, Schellart, Silver, Silver, Smith, Smith, Smith, Smith, Snoke, Sonder, Sonder, Sonder, Stewart, Suetnova, Sunil Bisnath, Suppe, Taber, Tapponnier, Thatcher, Thatcher, Thompson, Thompson, Usui, Waite, Walker, Wallace, Wallace, Wang, Watts, Weinberg, Wernicke, Wernicke, Wernicke, Wernicke, Wernicke, Wesnousky, Wesnousky, Wesnousky, Wilson, York, Zandt, Zandt, Zandt   +172 more
core   +2 more sources

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Subducted Carbon From Mantle Plume in Mid‐Ocean Ridge Basalts

Geophysical Research Letters
Deciphering the Earth's deep carbon cycle, from mantle plumes to mid‐ocean ridges, remains incompletely understood. In this study, we analyze the magnesium isotope composition of basalts collected from the South Mid‐Atlantic Ridge (SMAR), which have been
Haitao Zhang, Quanshu Yan, Xuefa Shi, Chuanshun Li, Fang Huang, Qiuyu Wen   +5 more
doaj   +1 more source

Frontiers in earth sciences: new ideas and interpretation

Annals of Geophysics, 2006
A one-day symposium on new and conventional ideas in plate tectonics and Mediterranean geodynamics was held in Rome on February 19, 2003 at the headquarters of INGV. There were two main reasons for such an initiative.
G. Scalera, G. Lavecchia
doaj   +1 more source

PALEOENVIRONMENTS RECONSTRUCTED FROM THE ANALYSES OF LOESS SEQUENCES ON SUSAK ISLAND, ADRIATIC SEA [PDF]

Acta Geographica Debrecina. Landscape & Environment Series, 2017
Susak Island is the outermost member of the archipelago of the Kvarner Bay, North Adriatic Sea, Croatia. Its long-term landscape evolution is defined by tectonic movements.
ÉVA KIS, FERENC SCHWEITZER, DÉNES LÓCZY   +2 more
doaj   +1 more source

Geology and mineralization of the Dayin’gezhuang supergiant gold deposit (180 t) in the Jiaodong Peninsula, China: A review

China Geology, 2022
The Dayin’gezhuang gold deposit is located in the central part of the Zhaoping Fault metallogenic belt in the Jiaodong gold province —the world ’s third-largest gold metallogenic area. It is a typical successful case of prospecting at a depth of 500‒2000
Xiang-dong Liu, Zheng-jiang Ding, Ming-chun Song, Ming-ling Zhou, Shao-hui Xu, Zhen-liang Yang, Tian-ci Xie, Tao Cui, Ying-xin Song, Xue-kan Gao, Rui-xiang Li, Liang-liang Zhang, Qi-bin Zhang, Shan-shan Wang, Bin Wang   +14 more
doaj   +1 more source

Geophysical characterisation of the ocean–continent transition at magma-poor rifted margins [PDF]

, 2009
Geophysical characterisation of the ocean-continent transition (OCT) at magma-poor riftedmargins has focused primarily on the determination of P wave velocities using wide-angleseismic techniques. Such experiments have shown that the OCT is heterogeneous,
Minshull, Timothy A.
core   +1 more source

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

Geological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo, Won‐Ki Kim, Chul Woo Rhee, Seungyeol Lee   +3 more
wiley   +1 more source

Investigation of petrology and petrogenesis of the Gaz Boland Neogene basalts, northwest of Shahr-e-Babak

Journal of Economic Geology, 2021
Introduction The Gaz Boland area is located in the northwest of Shahr-e-Babak city within the southern extension of the Urumieh-Dokhtar magmatic arc. The extended convergence history of the Neo-Tethys Ocean between Arabia and Eurasia (from ∼150 to 0 Ma)
Malihe Golestani
doaj   +1 more source