Results 171 to 180 of about 70,688 (326)

Olivine as a refractory [PDF]

open access: yesBureau of Standards Journal of Research, 1934
R.A. Heindl, W.L. Pendergast
openaire   +1 more source

Three‐dimensional morphological analysis of Chang'e‐5 lunar soil using deep learning‐automated segmentation on computed tomography scans

open access: yesComputer-Aided Civil and Infrastructure Engineering, EarlyView.
Abstract Grain morphology is a fundamental characteristic of lunar soil that influences its mechanical properties, sintering behavior, and in situ resource utilization. However, traditional two‐dimensional imaging methods are time‐consuming and lack full three‐dimensional (3D) structural information. This study presents an automated deep learning‐based
Siqi Zhou   +6 more
wiley   +1 more source

The Apollo 15 coarse fines (4-10 mm) [PDF]

open access: yes, 1989
A new catalog of the Apollo 15 coarse fines particles is presented. Powell's macroscopic descriptions, resulting from his 1972 particle by particle binocular examination of all of the Apollo 15 4 to 10 mm fines samples, are retained.
Ryder, Graham, Sherman, Sarah Bean
core   +1 more source

Hydrous Asthenosphere Underneath the Northern Pannonian Basin

open access: yesTerra Nova, EarlyView.
ABSTRACT This study reveals the structural hydroxyl content in clinopyroxenes of three cumulate xenoliths from the Nógrád‐Gömör/Novohrad‐Gemer Volcanic Field (northern Pannonian Basin), with values ranging from 275 to 384 ppm. Based on these data, the water content of the equilibrium parental alkali basaltic melt was estimated to be between 1.5 and 2.1 
Levente Patkó   +6 more
wiley   +1 more source

Chondrule olivine: Relationship between structure and composition using synchrotron X-ray Laue microdiffraction [PDF]

open access: yes, 2006
Published ...
Benedix, GK   +4 more
core  

A new CO carbonaceous chondrite from Acfer, Algeria [PDF]

open access: yes, 2006
Many small fragments, totally weighing 118 g were found in the Acfer area by an Italian dealer. Chondrules size and types (predominance of granular olivine type), occurrence of twinned clinoenstatite and absence of plagioclase suggested a classification ...
Franchi, I.   +4 more
core  

Home - About - Disclaimer - Privacy