Results 101 to 110 of about 19,231,090 (300)

Editorial: Advances in exploration and exploitation of deep and ultra-deep shale oil and gas

open access: yesFrontiers in Earth Science, 2023
Bhupati Neupane, Bhupati Neupane
doaj   +1 more source

Transparent exploration method for hidden small geological structure based on acoustic reflection imaging of horizontal boreholes

open access: yesInternational Journal of Coal Science & Technology
The geological conditions of deep mines are highly complex, with coal and gas outbursts occurring frequently. Among the contributing factors, small geological structures are the most likely to induce such gas outbursts.
Hongyang Xu   +8 more
doaj   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Geological Survey of Victoria. No. 51 : S.W., County of Dalhousie [cartographic material] /

open access: yes
Geological map shows Horse Hill at bottom centre in the parish of Baynton and adjacent to the parish of Glenhope. Relief shown by hachures.; "Printed at the Geological Department,"; Also available in an electronic version via the internet at: http://nla ...
Geological Survey of Victoria.
core  

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation

open access: yesThe Anatomical Record, EarlyView.
Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski   +2 more
wiley   +1 more source

Circular geological structures outcropping in the sedimentary basins of Saudi Arabia

open access: yes, 2015
A number of circular geological structures outcrop in the sedimentary basins of Saudi Arabia, several are reviewed here to assess their mode of origin.
S. Stewart
semanticscholar   +1 more source

Geological Survey of Victoria. No. 6 [cartographic material]

open access: yes
Caption title.; Quarter sheet 6SW is a geological map of the town of Macedon in the parish of Macedon on the top left of the map, with the town of Riddell in the parish of Kerrie on the far right and the town of Gisborne in the parish of Gisborne at the ...
Geological Survey of Victoria.
core  

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada   +5 more
wiley   +1 more source

Research and application of urban three-dimensional geological modeling technology based on multiple and complex geological structures: a case study of Chengdu, China

open access: yesFrontiers in Earth Science
Three-dimensional (3D) geological models can visually present various underground geological body forms, geological structures, geological hazards, which is of great significance for urban spatial planning and urban geological hazard prevention and ...
Ming Hao   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy