Results 111 to 120 of about 43,824 (242)
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 +5 more
wiley +1 more source
Thrusting, folding and stratigraphy of the Ghaap Group along the southwestern margin of the Kaapvaal Craton South African Journal of Geology, Aug 1990; 93: 553 - 566. [PDF]
, 1990 Altermann, Wladyslaw, Hälbich, Ingo W.
core +1 more source
Tectonic evolution of greenstone-Gneiss association in Dharwar Craton, South India: Problems and perspectives for future research [PDF]
The two fold stratigraphic subdivision of the Archean-Proterozoic greenstone-gneiss association of Dharwar craton into an older Sargur group (older than 2.9 Ga.) and a younger Dharwar Supergroup serves as an a priori stratigraphic model.
Rao, Y. J. B.
core +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.Abstract Multiple drillings in the Yorke Peninsula, South Australia, recently confirmed the presence of natural hydrogen (H2) in shallow sedimentary units. While radiolysis and Fe‐oxidation in the basement are potential generation mechanisms, their respective contributions remain unconstrained.
Ugo Geymond +15 more
wiley +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 +8 more
wiley +1 more source
The Influence of Fluvial Incision on the Lithospheric Stress Field: A Numerical Approach
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract Erosion along large fluvial valleys transports important sedimentary volumes across continents over geological time, modifying the loads imposed on the lithosphere and inducing isostasy‐related subsurface stresses. This work presents numerical experiments with a visco‐plastic lithosphere aimed at understanding the distribution and evolution of
F. Baiadori, V. Sacek
wiley +1 more source
A compilation of new airborne magnetic and gravity data across Dronning Maud Land, Antarctica. [PDF]
, 2007 The evolution of the South Atlantic region including the Weddell Sea and its adjacent areas is of crucialimportance for understanding the processes of the structure and tectonics of the Antarctic lithosphere, its relation to geodynamic processes ...
Jokat, Wilfried, Riedel, Sven
core
Multi-stage crustal growth and cratonization of the North China Craton
Geoscience Frontiers, 2014 AbstractThe North China Craton (NCC) has a complicated evolutionary history with multi-stage crustal growth, recording nearly all important geological events in the early geotectonic history of the Earth. Our studies propose that the NCC can be divided into six micro-blocks with >∼3.0–3.8 Ga old continental nuclei that are surrounded by Neoarchean ...
openaire +1 more source
Journal of Metamorphic Geology, Volume 44, Issue 4, Page 265-286, May 2026.ABSTRACT The Quetico subprovince of the Superior Province is among the largest metasedimentary belts globally and provides evidence of tectonic processes at play during the final stages of Archean cratonization. Although previous studies have shown that deformation and metamorphism of the 2.7‐Ga turbiditic protolith resulted in regional subvertical ...
Adrian G. Rehm +4 more
wiley +1 more source
Microspherules formed by lightning strikes
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 743-767, May 2026.Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley +1 more source