Results 91 to 100 of about 147,175 (375)
Challenges of identifying putative planetary-origin meteorites composed of non-igneous material [PDF]
arXiv, 2018 This concept article discusses the challenges of identifying planetary-origin meteorites of non-igneous composition, primarily of sedimentary origin, distinct from SNC meteorites. The paper reviews evidence on putative sedimentary-origin meteorites and potential parent bodies for sedimentary meteorites.
arxiv
Geologic information from satellite images [PDF]
The author has identified the following significant results. Extracting geologic information from ERTS and Skylab/EREP images is best done by a geologist trained in photointerpretation.
Knepper, D. H., Jr. +2 more
core +1 more source
GEOCHEMICAL JOURNAL, 1967 Concentrations of total, soluble and insoluble Cl were determined for various sedimentary rocks from differing localities and ages with a distillation method examined by the authors. Rock samples were investigated with an X-ray diffractometer and a microscope.
Nobuyuki Nakai +2 more
openaire +3 more sources
Advanced Materials Interfaces, EarlyView.Bioactive multi‐crosslinked hydrogels are prepared from gelatin methacrylate (GelMA), methacrylate‐functionalized alginate dialdehyde (ADAMA), and Cobalt‐doped mesoporous bioactive glass nanoparticles (Co‐MBGNs), demonstrating optimized elasticity, cytocompatibility, and wound healing potential.
Ehsan Zeimaran +4 more
wiley +1 more source
Journal of MMIJ, 2017 It is of significant importance to safely isolate the radioactive wastes from the human environments. Entombment of the wastes in deep subsurface may be a plausible solution on this issue, and will be adopted in the countries where the nuclear power ...
Naoki KINOSHITA, Hideaki YASUHARA
doaj +1 more source
Ellipsoidal anisotropy in elasticity for rocks and rock masses [PDF]
arXiv, 2011 One of the interesting features with the ellipsoidal models of anisotropy presented in this paper is their acceptance of analytical solutions for some of the basic elasticity problems. It was shown by Pouya (2000) and Pouya and Zaoui (2006) that many closed-form solutions for basic problems involving linear isotropic materials could be extended by ...
arxiv
An evaluation of multiband photography for rock discrimination [PDF]
The author has identified the following significant results. With the advent of ERTS and Skylab satellites, multiband imagery and photography have become readily available to geologists.
Lee, K., Raines, G. L.
core +1 more source
Fossil biomass preserved as graphitic carbon in a late paleoproterozoic banded iron formation metamorphosed at more than 550°C [PDF]
, 2019 Metamorphism is thought to destroy microfossils, partly through devolatilization and graphitization of biogenic organic matter. However, the extent to which there is a loss of molecular, elemental and isotope signatures from biomass during high ...
De Gregorio, BT +9 more
core +2 more sources
Advanced Materials Interfaces, EarlyView.An all aqueous synthesis of poly(ethylene glycol)‐amide‐norbornene‐carboxylate (PEGaNBCA) is developed via reacting carbic anhydride with amino‐terminated PEG. PEGaNBCA is readily crosslinked into hydrogels by click chemistries. PEGaNBCA crosslinked thiol‐norbornene hydrogels are hydrolytically stable but can be rendered hydrolytically labile through ...
Nathan H. Dimmitt, Chien‐Chi Lin
wiley +1 more source
This hands-on activity covers the basics of rock identification. After a brief discussion of the terms 'rock' and 'mineral', students will study the characteristics and classifications of the three major rock groups (igneous, metamorphic, and sedimentary)
John Pratte
core