Results 111 to 120 of about 16,262 (232)

Travertine precipitation in the Paleoproterozoic Kuetsjärvi Sedimentary Formation, Pechenga Greenstone Belt, NE Fennoscandian Shield [PDF]

, 2014
PES was supported by Väisälä Foundation (Finnish Academy of Science and Letters) and the Finnish Doctoral Program in Geology. ATB was supported by NERC grant NE/G00398X/1. VAM was supported by NFR grant 191530/V30 (projects 331000 and 802795).
Brasier, A. T., Karhu, J. A., Melezhik, V. A., Salminen, P. E.   +3 more
core   +1 more source

Detrital zircon geochronology of the Highland and Lützow-Holm Complexes: Implications for the regional correlation of Sri Lanka and East Antarctica [PDF]

, 2016
第7回極域科学シンポジウム:[OG] 地圏11月29日（火）国立極地研究所 1階 ...
M. Santosh, Sanjeewa P.K. Malaviarachchi, 堤 之恭, 角替 敏昭, 高村 悠介   +4 more
core   +1 more source

Paleoproterozoic tectonic evolution of the Trans-North China Orogen: toward a comprehensive model. [PDF]

, 2012
International audienceIn this contribution we present a reconstruction of the overall lithotectonic architecture, from inner zones to external ones, of the Paleoproterozoic Trans North China Orogen, within the North China Craton.
Faure, Michel, Le Breton, Nicole, Lin, Wei, Monié, Patrick, Trap, Pierre   +4 more
core   +4 more sources

Reappraisal of the Sumé Complex: geochemistry and geochronology of metaigneous rocks and implications for Paleoproteorozoic subduction-accretion events in the Borborema Province, NE Brazil

Brazilian Journal of Geology, 2019
The Alto Moxotó Terrane represents the largest exposure of Paleoproterozoic rocks in the central Borborema Province. Several medium- to high-grade metamorphic units are described in the terrane, however geochronological data are still scarce, and the ...
Edilton José dos Santos, Lauro Cézar Montefalco de Lira Santos   +1 more
doaj   +1 more source

Conservation of geosites as a tool to protect geoheritage: the inventory of Ceará Central Domain, Borborema Province - NE/Brazil [PDF]

, 2017
The Ceará Central Domain, in the northern Borborema Province/NE Brazil, encompasses important geological records (geosites) which allow understanding a relevant period of the Earth’s evolution, mainly associated to Neoproterozoic Brazilian/Pan-African ...
ALMEIDA AR, ALMEIDA AR, AMARAL WS, AMARAL WS, AMARAL WS, AMARAL WS, ANCELMI MF, ANCELMI MF, ARAÚJO CEG, ARAÚJO CEG, ARTHAUD MH, ARTHAUD MH, BORBA AW, BRILHA J, BRILHA J, BRILHA J, BRITO NEVES BB, BUTLER R, CABY R, CARCAVILLA LU, CARCAVILLA LU, CASTRO NA, CAVALCANTE JC, COSTA FG, DRUGET E, FETTER AH, FETTER AH, FUERTES-GUTIÉRREZ I, GARCIA MGM, GARCIA MGM, GARCIA MGM, HENRIQUES MH, IRWIN WP, JOSÉ B. BRILHA, KEAREY F, LIMA FF, LIMA FF, LIMA LC, MAIA RP, MAIA RP, MANSUR KL, MANSUR KL, MANSUR KL, MARIA DA GLÓRIA M. GARCIA, MARTINS G, NEVES SP, PARENTE CV, PEULVAST JP, PÂMELLA MOURA, ROCHA AJD, SALES VC, SANTOS TJS, SANTOS TJS, SCHOBBENHAUS C, THOMAS BA, VAN LOON AJ, VERÍSSIMO CUV, VERÍSSIMO CUV, WAGNER S. AMARAL, WIMBLEDON W, WIMBLEDON W   +60 more
core   +3 more sources

Pb Isotope Mapping of Paleoproterozoic Gneisses in the SW Grenville Province: Evidence for a Cryptic Continental Suture

Geosciences, 2018
New whole-rock lead (Pb) isotope analyses are presented in this study for granitoid orthogneisses from the Southwest Grenville Province in Ontario and Western Quebec.
Gabriel A. Arcuri, Alan P. Dickin
doaj   +1 more source

U-Pb geochronology of the El Jadida rhyolite and relation to possible Lower Cambrian recycling (Coastal block, Moroccan Meseta). [PDF]

, 2018
The El Jadida (Mazagan) dome, whose existence was reported as early as 1934 by Yovanovitch and Freys, constitutes one of the first outcrops of the Moroccan Meseta where the Precambrian (PIII?)-Paleozoic (Lower Cambrian?) boundary was established (Gigout,
El Attari, A., El Houicha, M., Ezzouhairi, H., Fekkak, A,, Gama, C., Jouhari, A., Nasser, N., Pereira, M.F., Silva, J.B.   +8 more
core  

Evidence of a Paleoproterozoic basement in the Moroccan Variscan [PDF]

, 2015
For the first time, an Eburnian magmatic event has been identified in the Rehamna Massif (Moroccan Variscan Belt, Western Meseta) located north of the South Meseta fault.
Pereira, M. Francisco
core  

Development of thermal state and plate tectonics in the North China Craton during Neoarchean–Paleoproterozoic

Communications Earth & Environment
Although the early tectonic regime of the Earth remains debated, it is generally accepted that the geodynamic system underwent a notable transition during the Neoarchean–Paleoproterozoic.
Xiangqiao Han, Jiahui Qian, Changqing Yin, Jian Zhang, Peng Gao   +4 more
doaj   +1 more source

Age of the granulitic metamorphism of the Nyong complex in the west border of Congo Craton, South Cameroon

Discover Geoscience
Pressure and temperature conditions and electron microprobe analysis dating on monazite were conducted to investigate the age of the tectono-metamorphic events of Nyong Complex.
Ndema Mbongué Jean-Lavenir, Nzenti Jean Paul, Cheo Emmanuel Suh, Sigue Cyrille   +3 more
doaj   +1 more source