Results 171 to 180 of about 3,619,968 (360)
A geophysical investigation of the Roter Kamm impact crater, Namibia
Meteoritics &Planetary Science, EarlyView.Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus +6 more
wiley +1 more source
The Silurian System by R I Murchison : a catalogue of the fossils illustrated in Part II, BGS Research Report SH/89/01 stratigraphy series (1989) : SUPPLEMENT (2007) [PDF]
, 2007 J.D.D. Smith
openalex
Stratigraphy, Geochronology, Geochemistry and Nd isotopes of the Late Ediacaran Ouarzazate group series from Eastern and Central Anti Atlas - (Morocco) [PDF]
, 2022 Mehdi Ousbih +11 more
openalex +1 more source
X‐ray computed tomography study of terrestrial analog cores in preparation for Mars sample return
Meteoritics &Planetary Science, EarlyView.Abstract Mars Sample Return (MSR) is expected to transform planetary science by providing unprecedented access to pristine Martian material. Initial characterization in the sample receiving facility (SRF) will rely on nondestructive techniques such as X‐ray computed tomography (XCT) to document the condition, distribution, and internal features of ...
Sophie Benaroya +3 more
wiley +1 more source
Bulletin de la Société Géologique de France, 1961 Abstract Studies of the Precambrian formations in the central Tafassasset area of the eastern Ahaggar mountains (Algeria) in the Sahara cast doubt on the existence of a Suggarian horst east of the great fault at 8 degrees 30'. The formations are difficult to distinguish from Pharusian formations to the north and south.
openaire +1 more source
Bio‐mediated cementation of supratidal beach sediments associated with groundwater springs
Sedimentology, EarlyView.ABSTRACT The formation of beachrock, sensu stricto, via carbonate precipitation in the intertidal zone is widespread throughout the tropics and subtropics. While cementation of supratidal beach sediments has also been noted in several locations, it has received much less attention.
Thomas William Garner +1 more
wiley +1 more source
Microbial mats in dinosaur ichnocoenoses
Sedimentology, EarlyView.ABSTRACT Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration.
Nora Noffke +3 more
wiley +1 more source
Sedimentology, EarlyView.ABSTRACT This research examines the spatial and geochemical interactions between mat‐forming microorganisms and thalassinid shrimp in an intertidal flat situated on the shores of Willapa Bay, Washington, USA. The study serves as a contemporary analog for the relationships between mats and burrowing organisms in deep time.
Brette S. Harris +9 more
wiley +1 more source