Results 31 to 40 of about 85,756 (294)

Indosinian high-strain deformation for the Yunkaidashan tectonic belt, south China : Kinematics and 40Ar/39Ar geochronological constraints [PDF]

, 2007
Structural and 40Ar/39Ar data from the Yunkaidashan Belt document kinematic and tectonothermal characteristics of early Mesozoic Indosinian orogenesis in the southern part of the South China Block.
Bureau of Geology and Mineral Resources of Guangdong Province (GDBGMR), Bureau of Geology and Mineral Resources of Guangxi Zhuang Autonomous Region (GXBGMR), Bureau of Geology and Mineral Resources of Jiangxi Province (JXBGMR), Cai, Carter, Cawood, Cawood, Cawood, Chen, Chen, Chen, Chen, Cobbold, Cruden, Deng, Deprat, Ding, Dodson, Ellis, Engebretson, Faure, Fromaget, Goodel, Gradstein, Guo, Hacker, Hames, Harrison, Hodges, Holloway, Hsû, Huang, Hunan Bureau of Geology and Mineral Resources (HNBGMR), Konopásek, Law, Lepvrier, Li, Li, Li, Li, Liang, Liang, Lin, Liu, Lo, Metcalfe, Metcalfe, Monir, Peng, Peng, Peng, Peng, Peter A. Cawood, Purdy, Qiu, Ren, Richard, Sang, Shaocheng Ji, Stevens, Thompson, Touping Peng, Tullis, Twiss, Veevers, Veevers, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Weiming Fan, Willett, Woodcock, Xinyue Chen, Xu, Xu, Xu, Yan, Yardley, Yuan, Yuejun Wang, Zhang, Zhong, Zhong, Zhou, Zhou, Zhu   +90 more
core   +1 more source

Structural and Tectonic Aspects of the Kuh-E Surmeh Pb-Zn Deposit, a Rare Case of Metallic Mineralization in the Zagros Fold-Thrust Belt [PDF]

Sustainable Earth Trends
The Surmeh deposit is a rare case of metallic mineralization in the Zagros FT-Belt. The regional structures with geological conditions from Paleozoic sequences to Late Paleozoic-Early Mesozoic extensional faulting, Cenozoic continental convergence and ...
Mohsen Ehteshami-Moinabadi, Mehdi Masoodi, Hamed Fotoohi   +2 more
doaj   +1 more source

Crustal structure between the Knipovich Ridge and the Van Mijenfjorden (Svalbard) [PDF]

, 2002
The Alfred Wegener Institute of Polar and Marine Research, the University of Bergenand the Hokkaido University acquired new seismic refraction data along a transect fromthe Knipovich Ridge to the inner Van Mijenfjorden in southern Svalbard.
Jokat, Wilfried, Mjelde, R., Ritzmann, O., Shimamura, H.   +3 more
core   +1 more source

Considering the Case for Biodiversity Cycles: Reexamining the Evidence for Periodicity in the Fossil Record [PDF]

, 2007
Medvedev and Melott (2007) have suggested that periodicity in fossil biodiversity may be induced by cosmic rays which vary as the Solar System oscillates normal to the galactic disk.
AB Smith, Adrian L. Melott, AG Fischer, AG Fischer, AI Miller, AW Grabau, Bruce S. Lieberman, CL Camp, DM Raup, DM Raup, ES Vrba, FO Brigham, G Ding, GG Simpson, J Alroy, JA Van Dam, JD Scargle, JJ Sepkoski Jr, JJ Sepkoski Jr, JL Cornette, JL Cornette, JM Adrain, John Hawks, JW Kirchner, JW Kirchner, JW Kirchner, LG Henbest, M Foote, M Foote, M Omerbashich, MJ Benton, ML Droser, MV Medvedev, N Eldredge, ND Newell, ND Newell, NL Gilinsky, P Laguna, PJ Lu, RA Muller, RA Rohde, RA Rohde, RE Plotnick, RK Bambach, S Peters   +44 more
core   +5 more sources

Sedimentary–Tectonic Evolution and Paleogeographic Characteristics of the Paleozoic in the Ordos Basin

Journal of Marine Science and Engineering
As a tectonically stable and extensively superimposed basin situated in the North China Craton, the Ordos Basin hosts abundant reserves of oil, natural gas, and coal within its Paleozoic strata, rendering it a focal area in energy-related geological ...
Yuxia Wang, Junfeng Ren, Heng Wang, Jing Luo, Lifa Zhou, Jiayi Wei   +5 more
doaj   +1 more source

Regional study of the Archean to Proterozoic crust at the Sudbury Neutrino Observatory (SNO+), Ontario: Predicting the geoneutrino flux

, 2014
The SNO+ detector, a new kiloton scale liquid scintillator detector capable of recording geoneutrino events, will define the strength of the Earth radiogenic heat.
Huang, Yu, Mantovani, Fabio, McDonough, William F., Rudnick, Roberta L., Shirey, Steven B., Strati, Virginia   +5 more
core   +1 more source

Constraints on Early Paleozoic Deep‐Ocean Oxygen Concentrations From the Iron Geochemistry of the Bay of Islands Ophiolite

Geochemistry, Geophysics, Geosystems, 2022
The deep ocean is generally considered to have changed from anoxic in the Precambrian to oxygenated by the Late Paleozoic (∼420–400 Ma) due to changes in atmospheric oxygen concentrations.
Daniel A. Stolper, Xiaofei Pu, Max K. Lloyd, Nikolas I. Christensen, Claire E. Bucholz, Rebecca A. Lange   +5 more
doaj   +1 more source

The lower jaw of Devonian ray‐finned fishes (Actinopterygii): Anatomy, relationships, and functional morphology

The Anatomical Record, EarlyView.
Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman, Rodrigo Tinoco Figueroa, Robert R. Higgins, Stephanie E. Pierce, Michael I. Coates, Emily M. Troyer, Vincent Fernandez, Kathleen Dollman, Jing Lu, Min Zhu, Matt Friedman, Sam Giles   +11 more
wiley   +1 more source

RELATIONSHIP BETWEEN THE PALEOZOIC AND CENOSIOIC FAULTING ENSEMBLES IN THE WESTERN PART OF THE ALTAI-SAYAN FOLDED AREA

Геодинамика и тектонофизика, 2023
Fault structures in folded areas are an important element of the geological structure. Their age and history of development affect seismicity, distribution of minerals, and engineering and geological characteristics of the area.
I. S. Novikov, I. D. Zolnikov, N. V. Glushkova, D. A. Danilson, K. K. Kolesov   +4 more
doaj   +1 more source

Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]

, 2012
Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L, FUNEDDA A., GAGGERO L, OGGIANO G   +3 more
core   +1 more source