Results 41 to 50 of about 66,575 (296)

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V., Downes, Hilary, Hock, V., Lazarov, M., Prelevic, D.   +4 more
core   +1 more source

Magmatism and tectonic evolution of West Antarctica

Dizhi lixue xuebao, 2021
West Antarctica is mainly composed of five distinct micro-continental blocks, namely Haag Nunataks, Antarctic Peninsula, Thurston Island, Marie Byrd Land and Ellsworth-Whitmore Mountains. In order to understand the geological evolution of West Antarctica,
ZHENG Guanggao, LIU Xiaochun, ZHAO Yue, PEI Junling   +3 more
doaj   +1 more source

Tectonic overview of the West Gondwana margin [PDF]

, 2008
The oceanic southern margin of Gondwana, from southern South America through South Africa, West Antarctica, New Zealand (in its pre break-up position), and Victoria Land to Eastern Australia is one of the longest and longest-lived active continental ...
Pankhurst, Robert J., Vaughan, Alan P.M.
core   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

The origin, conditions and mechanism for the formation of alpine-type hyperbasites of the Lesser Caucasus

Мінеральні ресурси України, 2023
The problem of hyperbasites origin is one of the widely discussed topics in geology. This is because they often appear when no expected. Their development does not correspond to the general regularities of the geological complexes’ development. Therefore,
Z. B. Abdullayev, A. T. Akhverdiev, N. F. Nagiyev, T. E. Kerimova   +3 more
doaj   +1 more source

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

Çayeli (Rize) ve İspir (Erzurum) arasında kalan alanın tektonostratigrafik özellikleri

Bulletin of the Mineral Research and Exploration, 2019
İnceleme alanı Doğu Pontidler’de Rize, Çayeli, Arhavi, İspir İkizdere arasında kalan alanı kapsamaktadır. Bu alanda Maçka Tektonik Dilimi (MTD) ve Taşköprü Tektonik Dilimi (TTD) yüzeylenmektedir. MTD yaşlıdan gence doğru; Geç Jura-Erken Kretase kireçtaşı
İsmet ALAN, Veli BALCI, Halil KESKİN, İbrahim ALTUN, Nevzat BÖKE, Hünkar DEMİRBAĞ, Sedat ARMAN, Hasan ELİBOL, Mustafa SOYAKİL, Alican Kop, Nurullah HANİLÇİ   +10 more
doaj   +1 more source

Svecofennian intra-orogenic gabbroic magmatism: A case study from Turku, southwestern Finland [PDF]

Bulletin of the Geological Society of Finland, 2014
Using single-grain zircon U-Pb dating by LA-MC-ICPMS and whole-rock geochemistry, we have studied the Palaeoproterozoic gabbroic rocks from Moisio in southwest Finland. Three ages were obtained.
J. Nevalainen, M. Väisänen, Y. Lahaye, E. Heilimo, S. Fröjdö   +4 more
doaj   +1 more source

Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data [PDF]

, 2012
Peer ...
Bingham, Robert George, Corr, Hugh F.J., Ferraccioli, Fausto, Jordan, Tom A., Le Brocq, Anne M., Leat, Philip T., Rippin, David M., Ross, Neil, Siegert, Martin J.   +8 more
core   +1 more source

Cave Palaeolithic of the Ural Mountains – a review

Boreas, EarlyView.
The Ural Mountains are of fundamental importance for studying early human migrations along the geographical limits between Europe and Asia. Geological processes and past climates gave rise to numerous caves, mostly in Palaeozoic carbonate formations.
Jiri Chlachula
wiley   +1 more source