Results 51 to 60 of about 46,098 (213)

Jurassic birds and their allies

open access: yesAmerican Journal of Science, 1881
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +4 more sources

Hydrocarbon generation simulation of coaly source rocks in the Lower combination on the southern margin of Junggar Basin and indications for oil and gas sources of well Gaotan 1

open access: yesShiyou shiyan dizhi, 2022
With the deepened exploration progress in the Junggar Basin, the lower assemblage has increasingly become the focus for oil and gas exploration. However, systematic research has not been achieved on the hydrocarbon generation characteristics of the lower
Miao YU   +7 more
doaj   +1 more source

Evaluation of oil content in shale by sealed thermal desorption: a case study of Jurassic Da'anzhai Member, Sichuan Basin

open access: yesShiyou shiyan dizhi, 2022
The oil content in shale is still a contentious issue due to the evaporative losses of free hydrocarbon. Considering the objective of the evaluation of oil content in shale and the demand of fast analysis at wellsite, a newly developed sealed rock ...
Chao LUO   +6 more
doaj   +1 more source

Isotopic characterization of Jurassic evaporites. Aconcagua-Neuquén Basin, Argentina [PDF]

open access: yes, 2005
Isotopic analysis can be used to interpret the origin of evaporitic sediments. A preliminary isotopic study of strontium, oxygen and sulphur has been carried out in Ca-sulphate facies of Jurassic marine evaporates (Tábanos Formation and Auquilco ...
Lo Forte, Gabriela L.   +9 more
core   +1 more source

Marine Jurassic of the Franz Joseph Land archipelago [PDF]

open access: yesНефтегазовая геология: Теория и практика
The collected memories, photographs, and texts are presented, providing additional information about the historical heritage of geological science in Russia.
Repin Yu.S.
doaj  

Shale oil reservoir characteristics and exploration implication in Da'anzhai Member of Jurassic Ziliujing Formation in central Sichuan Basin

open access: yesShiyou shiyan dizhi
To further guide the exploration and development of shale oil in the Da'anzhai Member of the Jurassic Ziliujing Formation in the Sichuan Basin, it is urgent to clarify the favorable lithofacies of shale oil.
Haitao HONG   +8 more
doaj   +1 more source

Ammonites and stratigraphy of a Lower Bajocian (Middle Jurassic) section in Sierra Chacaico (Neuquén Basin, Argentina) [PDF]

open access: yes, 2012
A Lower Bajocian section from southern Neuquén Basin (Argentina), with 3 faunal horizons (sphaeroceroides, submicrostoma and giebeli horizons) in the Singularis and Giebeli zones, is described.
Dietze, Volker   +5 more
core   +1 more source

Diapiric ridges and minibasins in the Central High Atlas: impact on geometries and facies distribution (Lower-Middle Jurassic, Morocco)

open access: yesBSGF - Earth Sciences Bulletin
The Central High Atlas of Morocco is the result of the Alpine tectonic inversion of an intracontinental Mesozoic basin, the infill of which started with thick Upper Triassic clay and evaporite deposition.
Joussiaume Rémi   +9 more
doaj   +1 more source

A new pliosaurid from the Oxford Clay Formation of Oxfordshire, UK

open access: yesActa Palaeontologica Polonica, 2022
We describe the anatomy of a new longirostrine pliosaurid, Eardasaurus powelli gen. et sp. nov., based on a substantially complete skeleton from the Middle Jurassic Oxford Clay Formation of Oxfordshire, UK.
HILARY F. KETCHUM, ROGER B.J. BENSON
doaj   +1 more source

Sharks, Rays and a Chimaeroid from the Kimmeridgian (Late Jurassic) of Ringstead, Southern England [PDF]

open access: yes, 2002
Sampling of a lenticular concentration of vertebrate debris and associated sediments from the lower Kimmeridgian of southern England has allowed the study of a diverse and abundant assemblage of chondrichthyan remains.
Underwood, Charlie J.
core  

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