Results 31 to 40 of about 18,656 (273)

Magmatic rifting and active volcanism

, 2016
A major rifting episode began in the Afar region of northern Ethiopia in September 2005. Over a ten-day period, c. 2.5 km3 of magma were intruded along a 60 km-long dyke separating the Arabian and Nubian plates.

core   +4 more sources

Geodynamic conditions of rifting on the Earth surface: problems of studying

Геодинамика и тектонофизика, 2017
Rift structures are considered as elements of the composite structural parageneses of deformations in the crust and lithosphere with respect to kinematic types of such deformations.
T. Yu. Tveritinova
doaj   +1 more source

ACADEMICIAN N.A. LOGATCHEV AND HIS SCIENTIFIC SCHOOL: CONTRUBITION TO STUDIES OF THE CENOZOIC CONTINENTAL RIFTING

Геодинамика и тектонофизика, 2015
N.A. Florensov and N.A. Logatchev pioneered development of fundamental concepts of the structure and evolution of the Baikal system of rift basins. At the turn to the 21st century, in view of the wide availability of scientific research data on the ...
Sergey V. Rasskazov, Semen I. Sherman, Kirill G. Levi, Valery V. Ruzhich, Vladimir M. Kozhevnikov, Vladimir A. San’kov   +5 more
doaj   +1 more source

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

Geochemistry, Geophysics, Geosystems
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
doaj   +1 more source

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Ductility and Compressibility Accommodate High Magma Flux Beneath a Silicic Continental Rift Caldera: Insights From Corbetti Caldera (Ethiopia)

Geochemistry, Geophysics, Geosystems, 2020
Large silicic magma reservoirs preferentially form in the upper crust of extensional continental environments. However, our quantitative understanding of the link between mantle magmatism, silicic reservoirs, and surface deformation during rifting is ...
J. Gottsmann, J. Biggs, R. Lloyd, Y. Biranhu, E. Lewi   +4 more
doaj   +1 more source

Origin and Age of Magmatism in the Northern Philippine Sea Basins

Geochemistry, Geophysics, Geosystems, 2022
A Robust tectonic reconstruction of the Philippine Sea Plate around ∼52 Ma is a prerequisite in understanding the process of subduction initiation and establishment of the Izu‐Bonin‐Mariana arc.
Osamu Ishizuka, Kenichiro Tani, Rex N. Taylor, Susumu Umino, Izumi Sakamoto, Yuka Yokoyama, Gen Shimoda, Yumiko Harigane, Yasuhiko Ohara, Chris E. Conway, Americus Perez, Shun Sekimoto   +11 more
doaj   +1 more source

Deciphering the Palimpsest: Chronological Uncertainty and the Interpretation of Mining Landscapes at Písečný vrch (Czech Republic)

Archaeological Prospection, EarlyView.
ABSTRACT We investigated the Písečný vrch (Czech Republic), a site exploited for quartz mining in both prehistoric times and the 20th century. Due to their morphological similarity across all mining periods, the differentiation between pits with archaeological potential and recent ones is challenging.
Jan Fišer, Petr Krištuf, Jan Kropáček, Vojtěch Barták, Lenka Starková, Vítězslav Moudrý   +5 more
wiley   +1 more source

The break-up of continents and the formation of new ocean basins

, 2002
Rifted continental margins are the product of stretching, thinning and ultimate break-up of a continental plate into smaller fragments, and the rocks lying beneath them store a record of this rifting process.
Minshull, T.A.
core   +1 more source

Intracontinental deformation in southern Africa during the late Cretaceous [PDF]

, 2014
Intracontinental deformation accommodated along major lithospheric scale shear zone systems and within associated extensional basins has been well documented within West, Central and East Africa during the Late Cretaceous.
Gleadow, Andrew, Summerfield, Michael, Brown, Roderic, Gallagher, Kerry, Carter, Andrew, Gallagher, K., Summerfield, Michael A., Brown, Roderick, Summerfield, M., Beucher, R., Beucher, Romain, Brown, R., Gleadow, A., Wildman, M., Wildman, Mark   +14 more
core   +1 more source