Results 1 to 10 of about 1,291 (133)

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

Geological records of the Great Oxidation Event (GOE) in China: Progress, challenge, and opportunity

Dizhi lixue xuebao
Objective  The Great Oxidation Event (GOE) during the early Paleoproterozoic represents one of the most significant geological events in Earth’s history and has profound impacts on Earth’s surface environment, biological evolution, and the formation of ...
ZHANG Shuanhong
doaj   +1 more source

Revisiting the origin and significance of the Paleoproterozoic complex in the Himalaya: new insights from apatite geochemistry

All Earth
This study examines the tectono-thermal evolution of the Paleoproterozoic complex in the Arun area, eastern Nepal, highlighting the role of apatite geochemistry, along with zircon U–Pb dating and whole-rock analyses.
Takeshi Imayama, Keewook Yi, Kazumasa Aoki   +2 more
doaj   +1 more source

Paleoproterozoic Reworking of Archean Crust and Extreme Back‐Arc Metamorphism in the Enigmatic Southern Trans‐Hudson Orogen

Geophysical Research Letters
The crustal evolution of the southernmost ∼2000–1800 Ma Trans‐Hudson orogen (THO) is enigmatic due to burial by Phanerozoic sediments. We provide new insights through petrochronologic analysis of a paragneiss drill core sample.
Ian W. Hillenbrand, Amy K. Gilmer, Michael L. Williams, A. Kate Souders, Michael J. Jercinovic, Heather A. Lowers, Jorge A. Vazquez   +6 more
doaj   +1 more source

Chromium isotope constraints on deep mantle oxidation from the Early Archean to Paleoproterozoic. [PDF]

Nat Commun
Xu LJ, Shen J, Huang S, Liu SA, Liu C, Liu J, Zhu XX, Mo Y, Puchtel IS, Cawood PA, Zhao G.   +10 more
europepmc   +1 more source

U-Pb ID-TIMS age of the Tiksheozero carbonatite: expression of 2.0 Ga alkaline magmatism in Karelia, Russia

Open Geosciences, 2011
Corfu Fernando, Bayanova Tamara, Shchiptsov Vladimir, Frantz Natalia   +3 more
doaj   +1 more source

Revisiting the greatness of Earth's great oxidation. [PDF]

Commun Earth Environ
Crockford PW, Sugiyama I, Kipp MA, Hao J, Nelson LL, Hemingway JD, Wimmer S, Fakhraee M.   +7 more
europepmc   +1 more source

Tectonism rather than "snowball Earth" glaciation is responsible for the Great Unconformity. [PDF]

Proc Natl Acad Sci U S A
Zhan RR, Duan L, Zattin M, Christie-Blick N, Wan B, Wei RH, Yang Z, Wang J, Gou L, Olivetti V, Chen KY, Zhang X.   +11 more
europepmc   +1 more source

Timing and magnitude of the Lomagundi-Jatuli carbon isotope excursion. [PDF]

Proc Natl Acad Sci U S A
Edmonsond S, Dyer B.
europepmc   +1 more source

Environmental phylogenetics supports a steady diversification of crown eukaryotes starting from the mid-Proterozoic. [PDF]

Proc Natl Acad Sci U S A
Sandin MM, Cohen PA, Morlon H, Burki F.
europepmc   +1 more source