Results 51 to 60 of about 217,051 (354)

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 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  

Mapping geology and structural features of Kazaure SE, NW Nigeria: Justifying groundwater potential model [PDF]

open access: yesZbornik radova Departmana za geografiju, turizam i hotelijerstvo, 2020
This research is focused on the evaluation of lithological units of the Kazaure area, north western Nigeria. The geological mapping was carried out using topographical sheet on a scale of 1:50,000.
Ibrahim Aliyu Kankara, Musa Ado Idris
doaj  

Investigation of the nature of suspended matter under the influence of the facies-genetic characteristics of bottom sediments

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2021
The purpose of this study is to obtain a mathematical model to assess the influence of the facies and genetic characteristics of bottom sediments on the distribution of suspended matter during dredging.The addressed problem is associated with the ...
Yu. E. Katanov   +3 more
doaj   +1 more source

Extracting Time-Series of Wet-Snow Facies in Greenland Using Sentinel-1 SAR Data on Google Earth Engine [PDF]

open access: gold, 2022
Jiao Hu   +6 more
openalex   +1 more source

Uncovering Archaeological Treasures at Saruq al‐Hadid, UAE: Insights From Ground Penetrating Radar and Magnetic Data

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Saruq al‐Hadid, located at the edge of the Rub Al‐Khali desert near Dubai's southern border with Abu Dhabi, is among the region's richest archaeological sites. Renowned for its historical role in metallurgy, trade and human habitation, the site was occupied from the Umm an‐Nar period through the post–Iron Age. Despite its significance, much of
Moamen Ali   +9 more
wiley   +1 more source

La sedimentación carbonatada en el Prepirineo aragonés durante el Cretácico superior

open access: yesEstudios Geologicos, 1999
El análisis de las facies carbonatadas realizado en el Cretácico superior del Prepirineo aragonés ha permitido establecer la reconstrucción paleogeográfica y paleoambiental para este sector de la Cuenca Surpirenaica.
L. Alegret, M. Aurell
doaj   +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

J-Block Triassic Well Performance & Reservoir Heterogeneity [PDF]

open access: yes, 2011
Imperial Users ...
Patel, Akash, Patel, Akash
core  

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