Results 71 to 80 of about 116,871 (355)
Expanding the application of the Eu-oxybarometer to the lherzolitic shergottites and nakhlites: Implications for the oxidation state heterogeneity of the Martian interior [PDF]
, 2009 Experimentally rehomogenized melt inclusions from the nakhlite Miller Range 03346 (MIL 03346) and the lherzolitic shergottite Allan Hills 77005 (ALH 77005) have been analyzed for their rare earth element (REE) concentrations in order to characterize the ...
Elkins-Tanton, Linda +2 more
core +1 more source
The Depositional Record, EarlyView.While the Smithian–Spathian boundary carbon isotopic excursion has been traditionally interpreted as capturing global carbon cycle behaviour, recent studies have suggested that at least some Early Triassic carbon isotopic excursions may incorporate influences from authigenic or early diagenetic processes.
Jordan P. Todes +6 more
wiley +1 more source
Afrique Archéologie Arts, 2013 The opportunity was taken in 2010 to carry out a full scientific and technical examination of the brass head from Ife, popularly known as the Olokun head, first published in 1912 by Leo Frobenius, together with a selection of other Ife heads that came to
Paul T. Craddock +6 more
doaj +1 more source
Crystals, 2023 Carbonate minerals are largely associated with many geological and biological environments as well as several industrial and technological processes. The crystalline characteristics of these mineral phases can be modified by background salts present in ...
Pedro Marin-Troya +3 more
doaj +1 more source
Mineral chemistry of late Variscan gabbros from central Spain: constraints on crystallisation processes and nature of the parental magmas [PDF]
, 2015 © 2016. Universidad Complutense de Madrid. The commercial rights of the printed and online versions of Journal of Iberian Geology are property of the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones CientÍficas (CSIC),
Jeffries, T +3 more
core +3 more sources
, 2015 This study presents recently collected data examining the organic petrology, palynology, mineralogy and geochemistry of the Gray Hawk coal bed. From the Early Pennsylvanian, Langsettian substage, Gray Hawk coal has been mined near the western edge of the
J. Hower +8 more
semanticscholar +1 more source
The Depositional Record, EarlyView.The Newark Basin has seen renewed interest recently as a potential location for carbon sequestration. This study uses a recently exposed outcrop to investigate the reasons behind varying lithologies and post‐depositional soft‐sediment deformation in the fluvial sandstones of the Stockton Formation. Using field observations and sediment geochemistry, we
Jane L. Alexander +3 more
wiley +1 more source
Predicting post‐wildfire overland flow using remotely sensed indicators of forest productivity
Hydrological Processes, Volume 36, Issue 12, December 2022., 2022 Relations between runoff coefficient and landscape metrics. (a) linear regression for inland plots only, (b) no regression determined for the data, (c‐f) exponential decay function fitted to the data (C = ae(b×x)). Triangles are the mean value for C, the line is the median, the bar show the range between the 25th and 75th percentiles, whiskers are the ...
Philip J. Noske +4 more
wiley +1 more source
Frontiers in Earth Science, 2020 The Holuhraun–Bárdarbunga (Iceland) eruption lasted approximately 6 months. Magma propagated laterally through a 40 km long dyke, while Bárdarbunga caldera was collapsing.
Luca Caricchi +6 more
doaj +1 more source
Abundance and Partitioning of OH in a High-pressure Magmatic System: Megacrysts from the Monastery Kimberlite, South Africa [PDF]
, 2004 Concentrations of OH, and major and trace elements were determined in a suite of mantle-derived megacrysts that represent the crystallization products of a kimberlite-like magma at ~5 GPa and ~1400–1100°C.
Bell, David R. +2 more
core +1 more source