Results 131 to 140 of about 197,145 (380)
The Depositional Record, EarlyView.The impact of syn‐depositional compaction on the sedimentation distribution and the interdependency between different delta areas related to the sediment budget are not fully understood. Our result shows that compaction creates additional accommodation space that leads to more sedimentation in the delta plain, while limiting sediment delivery towards ...
A. A. Valencia +3 more
wiley +1 more source
NEW DATA ON PYROCHLORE OF ALKALI PEGMATITES AND ORE ZONES OF THE VISHNEVYE MOUNTAINS (SOUTHERN URALS) [PDF]
Минералогия, 2018 The minerals of the pyrochlore group are abundant in rocks of the Vishnevogorsk alkaline complex – miaskites, mica rocks, carbonatites, and their pegmatites. Several generations of pyrochlore can be found in complex pegmatite bodies.
V.I. Popova +3 more
doaj
Infrared emission from novae [PDF]
arXiv, 2012 We review infrared observations of classical and recurrent novae, at wavelengths >3microns, including both broad-band and spectroscopic observations. In recent years infrared spectroscopy in particular has revolutionised our understanding of the nova phenomenon, by revealing fine-structure and coronal lines, and the mineralogy of nova dust.
arxiv
Transmission electron microscopy of an interplanetary dust particle with links to CI chondrites [PDF]
The majority of hydrated interplanetary dust particles (IDPs) have compositions that resemble CI and CM chondrites, however, their mineralogies are most similar to the fine grained material in certain altered type-3 carbonaceous and ordinary chondrites ...
Keller, Lindsay P. +2 more
core +1 more source
The Depositional Record, EarlyView.This paper presents laboratory experiments that investigated the dynamics of mud‐grade calcite laden gravity flows, with the aim of determining how mobile these calciclastic flows are in comparison to fine‐grained cohesive and non‐cohesive siliciclastic gravity flows.
Jaco H. Baas +3 more
wiley +1 more source
MINERAL TRANSFORMATIONS OF HYALOCLASTITE DURING LITHOGENESIS IN MASSIVE SULFIDE BEARING REGIONS OF URALS [PDF]
Минералогия, 2015 The features of the submarine transformations from primary hyaloclastites to oxide-ferruginous rocks of the Urals massive sulfide deposits are identified. These processes are accompanied by formation of smectite and Si-Fe phases transformed into chlorite-
N.R. Ayupova +3 more
doaj
Infrared observations of asteroids from earth and space [PDF]
Infrared reflectances at wavelength between 1 and 4 micrometers are used for determining asteroid surface mineralogy, surface composition, diameters, and albedos.
Lebofsky, L. A. +2 more
core +1 more source
HD 145263: Spectral Observations of Silica Debris Disk Formation via Extreme Space Weathering?
, 2020 We report here time domain infrared spectroscopy and optical photometry of the HD145263 silica-rich circumstellar disk system taken from 2003 through 2014.
Britt, D. T. +11 more
core +1 more source
Primary crustal melt compositions: Insights into the controls, mechanisms and timing of generation from kinetics experiments and melt inclusions [PDF]
, 2017 We explore the controls, mechanisms and timing of generation of primary melts and their compositions, and show that the novel studies of melt inclusions in migmatites can provide important insights into the processes of crustal anatexis of a particular ...
Acosta-Vigil, Antonio +6 more
core +1 more source