Results 51 to 60 of about 213,927 (355)

Silesaurid (Archosauria: Dinosauriformes) remains from the base of the Dockum Group (Late Triassic: Otischalkian) of Texas provide new insights to the North American record of dinosauriforms

open access: yesThe Anatomical Record, EarlyView.
Abstract Silesaurids (Archosauria: Dinosauriformes) are found in Middle to Upper Triassic deposits across Pangea, but few stratigraphic sections record the evolution of the group in one geographic area over millions of years. Here, we describe silesaurid remains from the oldest of the Upper Triassic stratigraphic sequence from the base of the Dockum ...
Frederick B. Tolchard   +2 more
wiley   +1 more source

Geochemical characterization of the hydrous pyrolysis products from a recent cyanobacteria-dominated microbial mat

open access: yesGeologica Acta, 2016
Hydrous pyrolysis experiments were performed on a recent microbial mat sample from Lagoa Vermelha, Brazil, to determine whether crude oil can be generated and expelled during artificial maturation of the Organic Matter (OM).
N. FRANCO   +7 more
doaj  

CORE LOG AND CONE PENETRATION TEST APPROACH FOR BEARING CAPACITY ANALYSIS OF QUATERNARY DEPOSIT AND ITS CORRELATION TO FACIES DISTRIBUTION IN SOUTHERN BALI

open access: yesRudarsko-geološko-naftni Zbornik, 2020
Area development deals with optimal land use and the reduction of the risk of geological disasters. The coastal area of South Bali is prone to land settlement hazards.
Nugroho Aji Satriyo   +2 more
doaj   +1 more source

Revisiting paravertebral muscles in European rabbits (Oryctolagus cuniculus) and European brown hares (Lepus europaeus) (Leporidae; Lagomorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen   +3 more
wiley   +1 more source

The Chuquibamba Landslide Western Cordillera, Peru revisited: New Evidence of a Dry Debris Avalanche

open access: yesGeofísica Internacional
Landslides represent a serious mountain hazard to lives and infrastructure, especially when geological factors such as highly fractured rocks, faulting, steep topography, and weathering combine with seismic triggering factors.
Juan Manuel Sánchez-Núñez   +3 more
doaj   +1 more source

Dynamic fluvial systems and gravel progradation in the Himalayan foreland [PDF]

open access: yes, 2000
Although the large-scale stratigraphy of many terrestrial foreland basins is punctuated by major episodes of gravel progradation, the relationships of such facies to hinterland tectonism and climate change are often unclear. Structural reentrants provide
Brozovic, Nicholas, Burbank, Douglas W.
core   +1 more source

The Upper Palaeozoic pebbly mudstone facies of peninsular Thailand and western Malaysia - Continental margin deposits of Palaeoeurasia [PDF]

open access: yes, 1986
Die devonische bis unterpermlsche Phuket Group in Thailand und deren Äquivalent in Malaysia, die Singha Formation, gehören zum SE-asiatischen "pebbly mudstone Gürtel", welcher sich vom südlichen Tibet bis Sumatra erstreckt. Diese ca.
Altermann, Wladyslaw
core   +1 more source

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

open access: yesThe Anatomical Record, EarlyView.
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

Sedimentology and geochemistry of tufa and their relation to hydrochemistry of springs: An example of Abgarm Tufa of Kalat- east of Kopet- Dagh basin [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2017
Tufa is the non- marine carbonates that formed from cold to low temperature freshwater at low depth and low energy flow conditions. Abgarm’s tufa is a typical kind of these deposits.
Fatemeh Goleij   +3 more
doaj   +1 more source

A Geomechanical Study of the Mississippian Boone Formation [PDF]

open access: yes, 2013
The Boone Formation in northwest Arkansas is a chert-limestone sequence analogous to the subsurface Mississippi Lime reservoir in parts of Oklahoma and Kansas. It has low permeability and produces via horizontal drilling and hydraulic fracturing.
Buckland, Karen Nicole Mason
core   +2 more sources

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