Results 91 to 100 of about 29,296 (274)

The tectonic evolution of central and Northern Madagascar and its place in the final assembly of Gondwana

, 2002
Copyright © 2002 by The University of Chicago. All rights reserved.Recent work in central and northern Madagascar has identified five tectonic units of the East African Orogen (EAO), a large collisional zone fundamental to the amalgamation of Gondwana ...
Windley, F., Brian F. Windley, Collins, A., Alan S. Collins   +3 more
core   +1 more source

Photosynthetic primary production in the Mesoproterozoic

New Phytologist, Volume 251, Issue 1, Page 64-80, July 2026.
Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo, John A. Raven   +1 more
wiley   +1 more source

A neoproterozoic age for the chromitite and gabbro of the Tapo Ultramafic Massif, Eastern Cordillera, Central Peru, and its tectonic implications

, 2011
The ultramafic-mafic rocks of the Tapo Complex are exposed in the Eastern Cordillera of the Central Peruvian Andes. This complex is composed of serpentinised peridotites and metabasites with some podiform chromitite lenses and chromite disseminations and
Acosta, Jorge, Pereira, Eurico, Tassinari, Colombo Celso Gaeta, Jose F. Rodrigues, Rodrigues, Jose F., Eurico Pereira, Ricardo Castroviejo, Castroviejo Bolibar, Ricardo, Acosta Ale, Jorge Gilberto, Tassinari, Colombo G., Jorge Acosta, Colombo C.G. Tassinari, Rodrigues, José Feliciano   +12 more
core   +1 more source

Hyperspectral Fingerprinting of Dune Sediments Across the Arabian Peninsula: Insights Into Sediment Provenance and Transport Pathways From NASA's EMIT Data

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The Arabian Peninsula encompasses one of the world's most extensive aeolian systems, yet the provenance and transport history of its dune sediments are not well understood. Using hyperspectral data from NASA's Earth Surface Mineral Dust Source Investigation (EMIT), we mapped mineral compositions and abundance patterns across dune fields and ...
Ahmed Alshakr, Mohamed Sultan, Mustafa Kemal Emil, Hassan Alharbi, Fahad Alshehri, Abdullah A. Alotaibi, Abdullah T. Mohammad, Aylin Yildirim, Neil C. Sturchio   +8 more
wiley   +1 more source

Detrital zircon geochronology of the Grenville/Llano foreland and basal Sauk Sequence in west Texas, USA

, 2014
We thank the University of St. Andrews and Natural Environment Research Council (NERC grant NE/J021822/1) for funding support. The NERC Isotope Geosciences Facilities Steering Committee (IP-1326-0512) provided additional funding support.U-Pb detrital ...
Roberts, Nick M.W., Spencer, Christopher, Roberts, N.M.W., Prave, Anthony R., Cawood, P., Roberts, N.M., Spencer, C.J., Prave, A.R., Cawood, Peter A., Spencer, Christopher J., Cawood, P.A.   +10 more
core   +1 more source

Provenance of the sedimentary rocks of the Bom Jardim Group (Neoproterozoic, Southern Brazil): Evidence from petrography, geochemistry and neodymium isotopes

Latin American Journal of Sedimentology and Basin Analysis
Provenance studies are helpful in reconstructing the tectonic, climatic and geographic setting of terrigenous sedimentary basins. The primary controls on the composition of detrital sedimentary rocks are the composition, climate and relief conditions of ...
André Weissheimer de Borba, Anderson José Maraschin, Fabio de Lima Noronha, Júnia Casagrande, Ana Maria Pimentel Mizusaki   +4 more
doaj  

Global species richness record and biostratigraphic potential of early to middle Neoproterozoic eukaryote fossils

Precambrian Research, 2017
Over the past several decades, a number of studies have addressed the record of eukaryotic species richness in the Proterozoic, each making quite clear that during the Neoproterozoic Era, in particular, tremendous changes occurred in Earth’s biota.
L. A. Riedman, P. Sadler
semanticscholar   +1 more source

Unifying Retaria Research: A Common Framework for Studying Foraminifera and Radiolaria

BioEssays, Volume 48, Issue 6, June 2026.
Research on Foraminifera and Radiolaria has predominantly focused on their fossil remains. This synthesis identifies the “Big Five” disciplines of a unified Retaria research: diversity and evolution, ecology, life cycles, and ecosystem roles, highlighting this lineage as a model system for understanding life's resilience in a rapidly changing planet ...
Miguel M. Sandin, Nicole L. Coots, Nicolaas Glock, Mattia Greco, Natalia Llopis‐Monferrer, Julie Meilland, Raphael Morard   +6 more
wiley   +1 more source

Detrital record of mountain building : Provenance of Jurassic foreland basin to the Dabie Mountains

, 2010
The Huangshi foreland basin developed on the southern margin of the Dabie Mountains as a result of tectonic loading during Triassic collisional suturing between the North China and South China cratons.
Jianghai Yang, Cawood, Peter Anthony, Peter A. Cawood, Yuansheng Du, Yang, Jianghai, Du, Yuansheng   +5 more
core   +1 more source

Habitat filtering and niche specialization of termite mound herbaceous flora in tropical dry woodlands

Ecosphere, Volume 17, Issue 6, June 2026.
Abstract Termite mounds (TMs) are characteristic micro‐ecosystems of tropical dry woodland landscapes. Although their effects on woody plant functional diversity and ecosystem functioning have been relatively well studied, herbaceous communities have received much less attention.
Jonas Yona Mleci, Pierre Meerts, Jason Vleminckx, Fidèle Cuma Mushagalusa, Bienvenu Bopeke, Mpibwe Kalenga, Thomas Drouet   +6 more
wiley   +1 more source