Results 91 to 100 of about 47,421 (235)

The hidden passive margins from the birth of SW Gondwana [PDF]

open access: yesBrazilian Journal of Geology
The final consolidation of southwestern Gondwana during the Ediacaran–Cambrian resulted in the formation of a large landmass originally surrounded by the newborn Panthalassic Ocean.
Lucas Veríssimo Warren   +10 more
doaj   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 6, Page 1451-1463, June 2026.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Historical biogeography of Melastomataceae [PDF]

open access: yes, 2001
Melastomataceae and Memecylaceae are pantropically distributed sister groups for which an ndhF gene phylogeny for 91 species in 59 genera is here linked with Eurasian and North American fossils in a molecular clock approach to biogeographical ...
Clausing, G.   +2 more
core   +1 more source

Post‐Eocene 90° CCW Rotation of Sardinia‐South Corsica: Paleomagnetic Evidence From Permian‐Cretaceous Sediments of Nurra (NW Sardinia)

open access: yesTectonics, Volume 45, Issue 5, May 2026.
Abstract The paleomagnetism of Miocene calc‐alkaline volcanics and sediments from Sardinia has firmly showed that the Corsica‐Sardinia microplate rotated 50°–60° counterclockwise (CCW) with respect to Europe between 21 and 15 Ma, during its drift from the Provencal margin. However, Permian to Eocene rocks from central‐south Sardinia revealed higher (up
Gaia Siravo   +3 more
wiley   +1 more source

A compilation of new airborne magnetic and gravity data across Dronning Maud Land, Antarctica. [PDF]

open access: yes, 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  

Extremely low long‐term erosion rates around the Gamburtsev Mountains in interior East Antarctica [PDF]

open access: yes, 2010
The high elevation and rugged relief (>3 km) of the Gamburtsev Subglacial Mountains (GSM) have long been considered enigmatic. Orogenesis normally occurs near plate boundaries, not cratonic interiors, and large‐scale tectonic activity last occurred in ...
Cox, S. E.   +4 more
core   +2 more sources

Air Gondwana

open access: yesASCILITE Publications, 2008
The first year subjects Contracts A and Contracts B at the Queensland University of Technology Faculty of Law are assigned the task of teaching the skill of negotiation at a basic level as part as an integrated graduate capabilities program. Until 2008 this was done using a traditional approach involving a lecture, print materials and role plays.
openaire   +1 more source

Shifting the Paradigm: Redefining the Chronostratigraphy of the Triassic Rewan Group, Bowen Basin, Australia

open access: yesBasin Research, Volume 38, Issue 3, May–June 2026.
New U–Pb zircon dating shows the Rewan Group was deposited between ~250 and 233 million years ago and that sedimentation shifted across the basin through time, with earlier deposition in the foredeep and later deposition in the back bulge. Testing multiple dating approaches and grain‐selection strategies improves confidence in these age estimates and ...
Matthew Scipione   +6 more
wiley   +1 more source

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