Results 31 to 40 of about 64,690 (275)

High-latitude ice and climate control on sediment supply across SW Gondwana during the late Carboniferous and early Permian

open access: yesGSA Bulletin, 2020
The response of sediment routing to climatic changes across icehouse-to-greenhouse turnovers is not well documented in Earth’s pre-Cenozoic sedimentary record.
N. Griffis
semanticscholar   +1 more source

U-Pb SHRIMP zircon dating of Grenvillian metamorphism in Western Sierras Pampeanas (Argentina) : correlation with the Arequipa-Antofalla craton and constraints on the extent of the Precordillera Terrane [PDF]

open access: yes, 2006
The Sierras Pampeanas of Argentina, the largest outcrop of pre-Andean crystalline basement in southern South America, resulted from plate interactions along the proto-Andean margin of Gondwana, from as early as Mesoproterozoic to Late Paleozoic times (e ...
C. Mark Fanning   +31 more
core   +4 more sources

Gondwana breakup: Messages from the North Natal Valley

open access: yesTerra Nova, 2020
The Natal Valley, offshore Mozambique, is a key area for understanding the evolution of East Gondwana. Within the scope of the integrated multidisciplinary PAMELA project, we present new wide‐angle seismic data and interpretations, which considerably ...
M. Moulin   +9 more
semanticscholar   +1 more source

Provenance history of a Late Triassic-Jurassic Gondwana margin forearc basin, Murihiku Terrane, North Island, New Zealand: petrographic and geochemical constraints [PDF]

open access: yes, 2004
The Murihiku Terrane in the North Island was a forearc basin adjacent to a volcanic arc along the eastern margin of Gondwana during the Mesozoic. The rocks that infill the basin are mainly volcaniclastic sandstones and mudstones, often turbiditic, with ...
Briggs, Roger M.   +2 more
core   +2 more sources

The Gondwanan Green Alga Tasmanites sp. in the Permian Lacustrine Deposits of West Timor

open access: yesIndonesian Journal on Geoscience, 2019
This paper discusses palynological research on the Permian lacustrine sediments of West Timor. Ten outcrop samples were collected from a 5 m high cliff.
Eko Budi Lelono
doaj   +1 more source

From source to sink in central Gondwana: Exhumation of the Precambrian basement rocks of Tanzania and sediment accumulation in the adjacent Congo basin [PDF]

open access: yes, 2016
Apatite fission track (AFT) and (U-Th)/He (AHe) thermochronometry data are reported and used to unravel the exhumation history of crystalline basement rocks from the elevated (>1000 m above sea level) but low-relief Tanzanian Craton.
Brown, Roderick   +5 more
core   +1 more source

Provenance Evolution of Age‐Calibrated Strata Reveals When and How South China Block Collided With Gondwana

open access: yesGeophysical Research Letters, 2020
The South China Block (SCB) has been regarded by many as an integral part of Gondwana, but proposed timing and processes for its accretion to Gondwana vary and remain contentious, largely owing to the lack of reliable Pan‐African age paleomagnetic data ...
Chuan Yang   +4 more
semanticscholar   +1 more source

Coupled stratigraphic and U-Pb zircon age constraints on the late Paleozoic icehouse-to-greenhouse turnover in south-central Gondwana

open access: yesGeology, 2019
The demise of the Late Paleozoic Ice Age has been hypothesized as diachronous, occurring first in western South America and progressing eastward across Africa and culminating in Australia over an ∼60 m.y.
N. Griffis   +12 more
semanticscholar   +1 more source

A Late Jurassic deep-bodied actinopterygian fish from Antarctica [PDF]

open access: yesActa Palaeontologica Polonica
Mesozoic deep-bodied actinopterygians are of interest given, among others, the various modes of feeding exhibited by these fishes. Regrettably, most of their fossil record is restricted to a limited number of localities in Europe.
Soledad Gouiric-Cavalli   +3 more
doaj   +1 more source

New information on the Cretaceous sauropod dinosaurs of Zhejiang Province, China: impact on Laurasian titanosauriform phylogeny and biogeography [PDF]

open access: yesRoyal Society Open Science, 2019
Titanosaurs were a globally distributed clade of Cretaceous sauropods. Historically regarded as a primarily Gondwanan radiation, there is a growing number of Eurasian taxa, with several putative titanosaurs contemporaneous with, or even pre-dating, the ...
Philip D. Mannion   +3 more
doaj   +1 more source

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