Results 1 to 10 of about 7,540 (244)

Slovenská terminológia travertínov, penovcov a príbuzných terestrických vápencov [PDF]

open access: yesGeologické práce. Správy, 2023
The paper follows on a review articles on Slovak travertines and tufa published in English in 2021. Geomorphological terms such as ‘fissure ridge’, ‘coalesced mound’, ‘self-buiding channel’, ‘keeled waterfall’, ‘smooth slope’, ‘terrased slope’, ‘dams ...
Daniel Pivko
doaj   +1 more source

TOC interpretation of lithofacies-based categorical regression model: A case study of the Yanchang formation shale in the Ordos basin, NW China

open access: yesFrontiers in Earth Science, 2023
In this paper, taking the shale of Chang 7-Chang 9 oil formation in Yanchang Formation in the southeastern Ordos Basin as an example, through the study of shale heterogeneity characteristics, starting from the preprocessing of supervision data set, a ...
Jintao Yin   +12 more
doaj   +1 more source

Pore Type, Pore Structure, and Controlling Factors in the Late Triassic Lacustrine Yanchang Shale, Ordos Basin, China

open access: yesEnergies, 2021
Organic-rich lacustrine shales in the Upper Triassic Yanchang Formation with thermal maturity mainly in the oil window are the main shale oil and shale gas system in the lacustrine strata of the Ordos Basin, China.
Ming Cheng   +7 more
doaj   +1 more source

Viromes of Freshwater Fish with Lacustrine and Diadromous Life Histories Differ in Composition

open access: yesViruses, 2022
Viruses that infect fish are understudied, yet they provide important evolutionary context to the viruses that infect terrestrial vertebrates. We surveyed gill tissue meta-transcriptomes collected from two species of native freshwater fish from Aotearoa ...
Benjamin J. Perry   +8 more
doaj   +1 more source

Spatio-Temporal Variations in the Geochemistry of Laguna Salada de Chiprana, NE Spain

open access: yesGeosciences, 2022
Hypersaline lakes are sensitive and increasingly threatened ecological and depositional environments that are host to a diverse spectrum of industrial services, natural resources, and environmental processes.
Connor Doyle   +6 more
doaj   +1 more source

Sedimentary succession and recognition marks of lacustrine gravel beach-bars, a case study from the Qinghai Lake, China

open access: yesOpen Geosciences, 2020
The present is the key to the past. Based on the dissection of modern beach-bars in the Qinghai Lake, Qinghai-Tibet Plateau, China, including two profiles parallelly to the shoreline, two profiles vertically to the shoreline and one plane-view profile ...
Peng Biao   +3 more
doaj   +1 more source

Thermodynamic characteristics of CH4 adsorption by continental shale: A case study of the Upper Triassic Yanchang shale in the Yanchang Gasfield, Ordos Basin

open access: yesNatural Gas Industry B, 2020
In order to improve the calculation method of the isosteric adsorption heat, clarify thermodynamic characteristics of CH4 adsorption by continental shale and reveal the adsorption mechanism, this paper selected shale samples from the seventh Member of ...
Pei Xue   +5 more
doaj   +1 more source

A New Species of Large Duck (Aves: Anatidae) from the Miocene of New Zealand

open access: yesTaxonomy, 2022
We describe a new species of extinct duck, Miotadorna catrionae sp. nov. (Anatidae, Tadornini, Tadorninae), based on a right humerus from the Miocene lacustrine deposits of St Bathans, Otago, New Zealand. Principal component analysis reveals that the new
Alan J. D. Tennyson   +6 more
doaj   +1 more source

New Geochronological Age Constraint and Chemostratigraphy for Aptian Lacustrine Strata, Cedar Mountain Formation, Utah

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The Early Cretaceous is an important time of transition in Earth history, marked by a succession of oceanic anoxic events and carbon cycle perturbations that drove changes on land and in the ocean.
Marina B. Suarez   +8 more
doaj   +1 more source

Bigadiç havzası (Balıkesir-Türkiye) Erken Miyosen göl çökellerinde sin-sedimanter deformasyon yapıları, taban kireçtaşı birimi

open access: yesBulletin of the Mineral Research and Exploration, 2018
Batı Anadolu bölgesinde geç Oligosen – erken Miyosen’de başlayan genişleme ile ilişkili faylarla sınırlı KD-GB, D-B doğrultulu havzalar gelişmiştir. Bu havzaların dolgularını volkanik ve volkanoklastik ara seviyeli akarsu – göl çökelleri oluşturur.
Calibe KOÇ TAŞGIN   +2 more
doaj   +1 more source

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