Results 91 to 100 of about 64,690 (275)

Neoproterozoic reorganization of the Circum- Mozambique orogens and growth of megacontinent Gondwana

Communications Earth & Environment, 2023
The serpentine orogenic belts that formed during the Neoproterozoic assembly of Gondwana resulted in geodynamic changes on the planet in advance of the Cambrian radiation.
Chao Wang, Xian-qing Jing, Joseph G. Meert   +2 more
doaj   +1 more source

Near‐Synchronous Cambrian Evolution of the Transbrasiliano‐Kandi‐4°50′ Shear Zone in South America and Africa

Terra Nova, EarlyView.
ABSTRACT The Transbrasiliano‐Kandi‐4°50′ (TK4) shear zone in western Gondwana crosscuts South America and NW Africa for at least 6000 km. Despite its impressive size, the timing of the main episode of dextral ductile shearing is uncertain. We present detailed in situ multi‐mineral geochronology of mylonites from both Brazil and Algeria supporting that ...
F. A. Caxito, B. V. Ribeiro, F. Alkmim, A. Deramchi, C. L. Kirkland   +4 more
wiley   +1 more source

Zircon Inheritance Refines the Cambrian Orogenic Architecture of Southeast Australia

Tektonika
The Selwyn Block is one of the few accreted terranes identified in the vast Paleozoic Tasmanides of eastern Australia and its incorporation into this orogen marks a first-order event in the tectonic evolution of the Pacific margin of Gondwana.
Jacob Mulder, Jacqueline Halpin, Laura Morrissey, Yousef Zoleikhaei, John Everard, Sebastien Meffre, Mike Hall, Oliver Nebel, Peter Cawood   +8 more
doaj   +1 more source

Evaluating Bayesian Morphological Clocks for Estimating a Dated Phylogeny in a Relict and Fossil‐Rich Family of Wasps (Hymenoptera, Chrysidoidea)

Zoologica Scripta, EarlyView.
ABSTRACT In recent years, a wide array of tools originally developed for molecular dating analyses has been adapted for use within a morphological clock perspective. This is of paramount relevance for taxonomic groups that cannot be sampled in forms suitable for DNA extraction.
Anderson Lepeco, Gabriel A. R. Melo, Brunno B. Rosa   +2 more
wiley   +1 more source

Exploring plane symmetric space-time in f(R) modified gravitational theory

East European Journal of Physics
This paper investigates a plane-symmetric cosmological model (PSCM) in the context of modified f(R) gravity theory, incorporating both vacuum and non-vacuum scenarios. A perfect fluid is assumed as the matter source.
D.V. Dhote, S.D. Deo
doaj   +1 more source

A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic [PDF]

, 2019
Global deep‐time plate motion models have traditionally followed a classical rigid plate approach, even though plate deformation is known to be significant.
Bower, Dan J., Breton, Eline Le, Cannon, John, Heine, Christian, Liu, Shaofeng [u.v.m.], Müller, R. Dietmar, Seton, Maria, Tetley, Michael G., Williams, Simon E., Zahirovic, Sabin   +9 more
core   +1 more source

How Did South China Connect to and Separate From Gondwana? New Paleomagnetic Constraints From the Middle Devonian Red Beds in South China

Geophysical Research Letters, 2018
The paleogeographic relationship between South China and Gondwana is critical for understanding the dispersion of Gondwana, accretion of Asia, and evolution of the Paleo‐Tethys.
Hanbiao Xian, Shihong Zhang, Haiyan Li, Qisheng Xiao, Linxi Chang, Tianshui Yang, Huaichun Wu   +6 more
semanticscholar   +1 more source

Contrasting stress fields on correlating margins of the South Atlantic [PDF]

, 2015
The “passiveness” of passive continental margins across the globe is currently under debate since several studies have shown that these margins may experience a variety of stress states and undergo significant vertical movement post-breakup.
Glasmacher, Ulrich Anton, Hackspacher, Christian Peter, Koehn, Daniel, Passcier, Cees, Salomon, Eric   +4 more
core   +1 more source

Geochemical characteristics and tectonic implications of igneous rocks from the Santos Basin and adjacent areas

Frontiers in Earth Science
The increasing presence of igneous rocks in hydrocarbon-bearing basins are drawing more attention. While the roles they play during the hydrocarbon generation and reservoir formation remain poorly understood, yet a detailed inspection of their ...
Jinglin Su, Jinglin Su, Jing Sun, Jing Sun, Liu Yang   +4 more
doaj   +1 more source

Phylogenetic relationships of Indian caecilians (Amphibia: Gymnophiona) inferred from mitochondrial rRNA gene sequences [PDF]

, 2002
India has a diverse caecilian fauna, including representatives of three of the six currently recognized families, the Caeciliidae, Ichthyophiidae, the endemic Uraeotyphlidae, but previous molecular phylogenetic studies of caecilians have not included ...
Benson, Bernard L Cohen, Bossuyt, Bremer, Duellman, Faith, Feller, Felsenstein, Hass, Hedges, Hillis, Hillis, Jenkins, Jonathan A. Sheps, Kocher, Kumar, Maddison, Mark Wilkinson, Nei, Nussbaum, Nussbaum, Nussbaum, Nussbaum, Nussbaum, O'Keefe, Oommen V Oommen, Pillai, Ramaswami, Robinson, Sambrook, Savage, Smith, Templeton, Thorley, Thorley, Wake, Wilkinson, Wilkinson, Wilkinson, Wilkinson   +39 more
core   +2 more sources