Results 31 to 40 of about 213,060 (361)

The stratigraphy of Mars [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 1986
A detailed planetwide stratigraphy for Mars has been developed from global mapping based on Viking images and crater counting of geologic units. The original Noachian, Hesperian, and Amazonian Systems are divided into eight series corresponding to stratigraphic referents.
openaire   +2 more sources

Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine) [PDF]

open access: yes, 2015
Peer reviewedPublisher ...
Abels, Hemmo A.   +8 more
core   +2 more sources

Structure of the Alpujarrides on the southern and eastern border of the Sierra de Lújar

open access: yesEstudios Geologicos, 1990
El Complejo Alpujárride situado al Sur de Sierra Nevada y comprendido entre Motril y Adra, está formado por cinco mantos que son, en orden ascendente: Lújar, Cástaras, Alcázar, Murtas y Adra.
J. Cuevas   +3 more
doaj   +1 more source

Revision of the age and stratigraphic relationships of Hinemaiaia Tephra and Whakatane Ash, North Island, New Zealand, using distal occurrences in organic deposits [PDF]

open access: yes, 1986
The stratigraphic and chronologic relationships of Hinemaiaia Tephra and Whakatane Ash are examined using distal tephras preserved in organic-rich deposits at five sites in eastern and northern North Island, New Zealand. A c.
Lowe, David J.
core   +2 more sources

The first Late Triassic Chinese triadophlebiomorphan (Insecta: Odonatoptera): biogeographic implications

open access: yesScientific Reports, 2017
The clade Triadophlebiomorpha represents a morphological ‘link’ between the Paleozoic griffenflies (Meganisoptera) and the modern taxa. Nevertheless they are relatively poorly known in the body structures and paleobiogeography.
Daran Zheng   +6 more
doaj   +1 more source

Seismic Facies Analysis on 2d Seismic Reflection Profile in Baruna and Jaya Line at North East Java Basin [PDF]

open access: yes, 2016
Two dimension (2D) seismic profile of Baruna and Jaya lines at North-East Java Basin show seismic reflector characteristics that can be used to interpret sediment thickness and continuity.
Ardhyastuti, S. (Sri)   +4 more
core   +1 more source

Seismic stratigraphy and history of deep circulation and sediment drift development in Baffin Bay and the Labrador Sea [PDF]

open access: yes, 1989
Drilling results and seismic-reflection records at and across Ocean Drilling Program (ODP) Sites 645 (western Baffin Bay), 646, and 647 (Labrador Sea) provide important constraints on the history of deep-water circulation and sedimentation in response to
Arthur, M.A.   +4 more
core   +1 more source

A tiny Cambrian stem-mandibulate reveals independent evolution of limb tagmatization and specialization in early euarthropods

open access: yesScientific Reports
The mandibulate euarthropods are the most speciose animal group, but the evolutionary gaps in origin of mandibulate body plan remain unresolved. Marrellomorphs, a common Paleozoic euarthropod group, had a long evolutionary history from Cambrian to ...
Yao Liu   +6 more
doaj   +1 more source

Uncertainty quantification and reduction in the characterization of subsurface stratigraphy using limited geotechnical investigation data

open access: yesUnderground Space, 2020
Subsurface stratigraphy is critical to the design, construction, and subsequent performance of geotechnical structures. However, in practice it is impossible to identify the stratigraphy of a subsurface geological domain with absolute certainty, due to ...
Xiangrong Wang
doaj   +1 more source

An integrated biostratigraphy and seismic stratigraphy for the late Neogene continental margin succession in northern Taranaki Basin, New Zealand [PDF]

open access: yes, 2006
Our aim has been to develop an integrated biostratigraphy and seismic stratigraphy for the Pliocene and Pleistocene formations (Ariki, Mangaa, Giant Foresets) in northern Taranaki Basin to better understand the evolution of the modern continental margin ...
Armentrout JM   +17 more
core   +2 more sources

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