Results 111 to 120 of about 2,089 (196)

Biomarker and compound-specific isotope records across the Toarcian CIE at the Dormettingen section in SW Germany. [PDF]

open access: yesInt J Earth Sci, 2022
Ajuaba S   +6 more
europepmc   +1 more source

Paleoenvironment and age of Los Monos Formation (Devonian), Tarija Basin, Argentina and Bolivia

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2021
The objective of this work is to discuss the paleoenvironment and age of the Los Monos Formation, in outcrop and subsurface, along a regional transect (west-east) in the southern sector of the Tarija basin.
Juan Gonzalo Veizaga Saavedra   +5 more
doaj  

Hydrocarbon source rock potential of the Late Cretaceous sediments in the Asaga–Ohafia Axis, Afikpo Basin, Nigeria: Insights from facies and kerogen analyses

open access: yesEnergy Geoscience
This study investigated the hydrocarbon source rock potential of the Late Cretaceous Mamu and Nkporo formations in the Asaga–Ohafia Axis, Afikpo Basin, southeastern Nigeria, using integrated facies analysis, organic geochemical and palynofacies data ...
Samuel Okechukwu Onyekuru   +8 more
doaj   +1 more source

Variação isotópicas d13C carbonatos na Sucessão da Baía de Três Angras: afloramento Mesozóico da Carrapateira (Kimeridgiano Inferior) [PDF]

open access: yes, 2014
O afloramento Mesozóico da Carrapateira (AMC), localizado a 20 km a norte de Sagres é formado por sedimentos do Triássico Superior ao Kimmeridgiano.
Borges, Marisa   +5 more
core  

Lethal microbial blooms delayed freshwater ecosystem recovery following the end-Permian extinction. [PDF]

open access: yesNat Commun, 2021
Mays C   +5 more
europepmc   +1 more source

Comparing palynofacies and palaeoenvironment of Sarcheshmeh Formation in Joragh and Sheikh section (east and west of Kopeh-Dagh Basin)

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2014
1-Introduction: Kopeh-Dagh sedimentary basin is located in NE of Iran and is mainly composed of Mesozoic and Cenozoic sedimentary rocks (35 30ˊ-38 15ˊ N, 54 00-61 31ˊE)(Afshar-Harb 1994).
Mohsen Allameh   +2 more
doaj  

Mortality, protoplasm decay rate, and reliability of staining techniques to recognise 'living' foraminifera: a review.

open access: yes, 2000
Non-vital staining, especially with rose Bengal, has been widely used in ecological studies to differentiate between the tests of dead(unstained) foraminifera from those presumed to be living at the time of collection (stained).
Bowser, S.S., Murray, J.W.
core  

Organic matter characteristics of Eocene source rocks with different lithologies in Baiyun Sag of Pearl River Mouth Basin and their geological significance

open access: yesShiyou shiyan dizhi
In the deep-water area of the Zhu Ⅱ Depression of the Pearl River Mouth Basin, the Baiyun Sag develops three types of source rocks: mudstone, carbonaceous mudstone, and coal.
Yue CHEN   +5 more
doaj   +1 more source

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