Results 111 to 120 of about 22,802 (265)

Workshop on a Cross Section of Archean Crust [PDF]

Various topics relevant to crustal genesis, especially the relationship between Archean low - and high-grade terrains, were discussed. The central Superior Province of the Canadian Shield was studied.
Ashwal, L. D., Card, K. D.
core   +1 more source

Interior Rifting Coupled With Peripheral Subduction in the Rodinia Supercontinent: New Insights From the Tarim Craton

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract After assembly, supercontinents are shaped by internal rifting and peripheral subduction. However, the geodynamic relationship between these two processes and their respective contributions to supercontinent breakup remain poorly understood.
Shipeng Liu, Rongfeng Ge, Teng Zhou, Yang Si, Yue Wang   +4 more
wiley   +1 more source

Cryptic Paleomagnetic Complexity in the Ediacaran Egersund Dikes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The Ediacaran Period (∼635–539 Ma) represents a critical interval in Earth's evolution, yet its paleomagnetic record remains complex and contentious. One of the few Ediacaran paleomagnetic results from Baltica considered robust is a pole from the ca.
Yi Xue, Mathew Domeier, Petter Silkoset, Leandro C. Gallo, Justin A. D. Tonti‐Filippini, Harald J. Walderhaug   +5 more
wiley   +1 more source

Hornblendite in the Lower Crust: A Possible Source for Porphyry Cu Deposits

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Lower crustal sulfide‐bearing Cu‐rich cumulates, mainly occurring as hornblendite, have been proposed as a critical source component for the development of giant porphyry Cu deposits (PCDs); however, their mineralogical and geochemical nature remain elusive.
Guangxu Li, Lingsen Zeng, Li‐E. Gao, Lilong Yan, Haitao Wang, Linghao Zhao   +5 more
wiley   +1 more source

Geochemical characteristics of charnockite and high grade gneisses from Southern Peninsular Shield and their significance in crustal evolution [PDF]

Presented here are the results of detailed investigations encompassing externsive structural mapping in the charnockite-high grade gneiss terrain of North Arcot district and the type area in Pallavaram in Tamil Nadu supported by petrography, mineral ...
Sugavanam, E. B., Vidyadharan, K. T.
core   +1 more source

Ediacara Obscura: Unveiling Hidden Magnetisations in the Fen Complex, Southern Norway

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Paleomagnetic directions found in Ediacaran (635–539 Ma) rocks are widely dispersed, which has led to conflicting hypotheses about tectonic regimes and geomagnetic field behavior during this period, and raised doubts about the fidelity of the paleomagnetic record.
Justin A. D. Tonti‐Filippini, Paul Y. J. Antonio, Sven Dahlgren, Rosa de Boer, Leandro Gallo, Petter Silkoset, Bertwin de Groot, Lennart de Groot, Mathew Domeier   +8 more
wiley   +1 more source

Petrology and Au-PGE investigation dataset of the recent alluvial sediments from the Ngaye River watershed, northern Cameroon. [PDF]

Data Brief, 2023
Ndjigui PD, Ngono EHO, Fadil-Djenabou S.
europepmc   +1 more source

Are Estimates of Lower Continental Crust Bulk Composition Biased Due to Seismic Anisotropy?

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Most seismic inferences on the bulk composition of the lower continental crust are based on P‐wave velocities inferred from seismic wide‐angle data, for which the direction of propagation in the target region is sub‐horizontal. Given the likely presence of anisotropy in many parts of the lower continental crust, these estimates could be biased
Zheng Luo, Othmar Müntener, György Hetényi, Klaus Holliger   +3 more
wiley   +1 more source

Integrated mineral chemistry and monazite–zircon U–Pb geochronology of Wangtu metasediments and granite-gneisses, NW Himalaya, and their implications in Columbia assembly

Discover Geoscience
The Wangtu Gneissic Complex (WGC) is a Paleoproterozoic granite-gneiss complex located in the Wangtu-Karcham-Akpa section of the Sutlej Valley in the Himachal Himalaya, India. The basement of the WGC remains mostly in its original state.
Hifzurrahman, Pritam Nasipuri, Fernando Corfu   +2 more
doaj   +1 more source

Optimization of Parsimonious and Synchronized Discharge and Dissolved Organic Carbon Models Across Catchment Scales

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract The production, transport, loss, and export of dissolved organic carbon (DOC) are closely connected with hydrometeorological drivers. While terrestrial production depends on biogeochemical variables like soil moisture, air temperature, and the contact area between water and organic matter sources, export is determined by water availability and
Juan Pesántez, Christian Birkel, Gabriel Gaona, William H. McDowell, Michelle D. Shattuck, Jody D. Potter, Alexandra R. Contosta, Adam S. Wymore   +7 more
wiley   +1 more source