Results 81 to 90 of about 462,957 (252)
The Planetary Science JournalTitan’s atmospheric methane requires replenishment due to photolysis-driven loss. We have modeled the destabilization of an upper layer of methane clathrate hydrates (MCH) containing some ammonia (NH _3 ) through thermal interaction with a warm ice ...
Ashley Gerard Davies +4 more
doaj +1 more source
The Geology and Planetary mapping winter school
, 2021 In 2021, between 1-5 February, theUniversity of Padua coordinated the 1st edition of theGeology and Planetary mapping virtual school(https://www.planetarymapping.eu/), which involvedmore than 150 participants spread all over the world andmore than 50 instructors from at least 9 Europeaninstitutions.In planetary exploration programs, geological mapsare ...
Massironi, Matteo +10 more
openaire +2 more sources
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Significant achievements in the Planetary Geology Program [PDF]
, 1978 Developments reported at a meeting of principal investigators for NASA's planetology geology program are summarized. Topics covered include: constraints on solar system formation; asteriods, comets, and satellites; constraints on planetary interiors ...
Head, J. W.
core
The Anatomical Record, EarlyView.Abstract Phylogenetic comparative methods have been used in recent literature to work with laws and test for regularities (evolutionary associations of quantitative features) and evolutionary singularities (features that evolved in a single taxon). We analyzed these uses epistemologically, taking the evolution of red‐blood‐cell mean corpuscular volume (
Jorge Cubo +3 more
wiley +1 more source
Contributions to Geology, 1932 [PDF]
, 1929 The "Contributions to Geology," issued by the Bureau of Economic Geology of The University of Texas, include shorter papers of which in addition to other Bureau publications, usually, one volume per year is published, the present volume ...
University of Texas at Austin. Bureau of Economic Geology
core +1 more source
The Anatomical Record, EarlyView.Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras +3 more
wiley +1 more source
Reports of planetary geology program, 1977-1978 [PDF]
, 1978 A compilation of abstracts of reports which summarizes work conducted by Planetary Geology Principal Investigators and their associates is presented.
Cameron, A. G. W. +9 more
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The effect of the oceans on the terrestrial crater size-frequency distribution: Insight from numerical modeling [PDF]
, 2007 18.06.13 KB. Ok to add the published version to Spiral.
Davison, T. +5 more
core +1 more source
The Planetary Science JournalTectonic and cryovolcanic features on Europa suggest a dynamically active ice shell with a highly deformable near-surface brittle layer. Shell thickness estimates based on geological interpretation and thermal modeling vary from 10 km to more than 30 km.
Rawad Himo +3 more
doaj +1 more source