Results 31 to 40 of about 8,820 (215)

Paleoproterozoic tectonics of Fennoscandia and the birth of Baltica

Earth-Science Reviews, 2023
Peer ...
R. Lahtinen, J. Köykkä, J. Salminen, M. Sayab, S.T. Johnston   +4 more
openaire   +3 more sources

Supplemental Material: Late Archean–Paleoproterozoic plate tectonics along the northern margin of the North China craton

, 2022
Table S1: U-Pb zircon geochronology results of late Archean Wuchuan ultramafic-mafic complex and Paleoproterozoic intrusions. Table S2: U-Pb baddeleyite geochronology results of Yongli carbonatite sample. Table S3: Whole-rock geochemistry data for the 21
Chen Wu (10099836), et al. (281964)
core   +1 more source

Geochemical signatures of manganese ores around Barbil, Noamundi-Koira basin, Singhbhum Craton, Eastern India

Geology, Ecology, and Landscapes, 2021
Palaeoproterozoic Noamundi – Koira Basin (NKB), on the western margin of the >3.0 Ga old Singhbhum Granitoid Complex, forms a horseshoe-shaped synclinorium.
Shabber H. Alvi, Mohd. Shaif
doaj   +1 more source

BRYANSK-KURSK-VORONEZH INTRA-CONTINENTAL COLLISIONAL OROGEN (EAST EUROPEAN CRATON)

Геодинамика и тектонофизика, 2015
The article presents new data on the deep crustal structure, origin and evolution of the Bryansk-Kursk-Voronezh orogen in the south-eastern segment of the East European craton; it is composed of the Paleoproterozoic formations and areas of reworked ...
M. V. Mints, W. A. Bush, S. N. Ageev
doaj   +1 more source

THE BELOMORIAN ECLOGITE PROVINCE (EASTERN FENNOSCANDIAN SHIELD, RUSSIA): MESO-NEOARCHEAN OR LATE PALEOPROTEROZOIC?

Геодинамика и тектонофизика, 2020
A critical discussion of competing models of the geodynamic nature (oceanic or continental subduction) and age (Meso-Neoarchean or Late Paleoproterozoic) of the eclogite facies metamorphism in the Belomorian eclogite province (BEP) is based on the ...
M. V. Mints, K. A. Dokukina
doaj   +1 more source

FAULT SYSTEMS IN THE UPPER CRUST OF THE FENNOSCANDIAN SHIELD, THE EAST EUROPEAN PLATFORM

Геодинамика и тектонофизика, 2020
Directions of 683 faults located in the southeastern part of the Fennoscandian (Baltic) shield were statistically analyzed, and three orthogonal associations of fault systems were identified in the study area.
V. S. Burtman, S. Yu. Kolodyazhny
doaj   +1 more source

Archean and Paleoproterozoic cratonic rocks of Baffin Island [PDF]

Archean and Paleoproterozoic cratonic rocks of Baffin Island define four stacked structural levels that are juxtaposed within the middle Paleoproterozoic Trans-Hudson Orogen.
Rayner, N, Sanborn-Barrie, M, Scott, D J, Skipton, D R, Saumur, B M, Weller, O. M., St-Onge, M R, Wodicka, N   +7 more
core   +1 more source

Revisiting the Pyhäsalmi volcanic complex, western Finland: new insights from volcanic-facies mapping [PDF]

Bulletin of the Geological Society of Finland
The Pyhäsalmi Volcanogenic Massive Sulfide (VMS) deposit, hosted by volcanic rocks of the 1.93–1.91 Ga Vihanti–Pyhäsalmi–Rautalampi belt, is the largest base metal sulfide deposit in Finland (75.7 Mt at 0.9 wt.% Cu, 1.9 wt.% Zn, 0.4 g/t Au, and 14.1 g/t ...
Janne Hokka, Ville Järvinen
doaj   +1 more source

Tectonic Juxtaposition of Two Independent Paleoproterozoic Arcs by Cenozoic Duplexing in the Arun Tectonic Window of the Eastern Nepalese Himalaya

Frontiers in Earth Science, 2022
The tectonic evolution of the Himalayan orogenic belt before Cenozoic convergence is important to understand its modern structural framework. There is still controversy regarding the tectonic history of the lower Lesser Himalaya Sequence (LHS) in the ...
Rui Li, Rui Li, Rui Li, Rui Li, Songjian Ao, Songjian Ao, Wenjiao Xiao, Wenjiao Xiao, Wenjiao Xiao, Wenjiao Xiao, Karel Schulmann, Qigui Mao, Qigui Mao, Qigui Mao, Qigui Mao, Dongfang Song, Dongfang Song, Zhou Tan, Zhou Tan, Zhou Tan, Zhou Tan, Hao Wang, Hao Wang, Hao Wang, Hao Wang, Saunak Bhandari   +25 more
doaj   +1 more source

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +1 more source