Results 1 to 10 of about 30,004 (307)

Late Barremian-Early Aptian Ammonites from the Tirgan Formation, Kopet-Dagh Sedimentary Basin, NE Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2019
During the recent field research on the Tirgan Formation in the west of Kopet-Dagh sedimentary basin, ammonite assemblages were obtained from the carbonate strata of this formation. This new finding is important for stratigraphical purpose.
Morteza Taherpour Khalil Abad   +3 more
doaj   +1 more source

THE STRUCTURAL STYLE OF FOOTWALL SHORTCUTS ALONG THE EASTERN FOOTHILLS OF THE COLOMBIAN EASTERN CORDILLERA. DIFFERENCES WITH OTHER INVERSION RELATED STRUCTURES ESTILO ESTRUCTURAL DE LAS FALLAS DE ATAJO A LO LARGO DEL PIEDEMONTE ORIENTAL DE LA CORDILLERA ORIENTAL COLOMBIANA. DIFERENCIAS CON OTRAS ESTRUCTURAS RELACIONADAS CON INVERSIÓN TECTÓNICA

open access: yesCT&F Ciencia, Tecnología & Futuro, 2008
For the first time we show geological evidence of unambiguosly documented footwall shortcuts adjacent to the trace of inverted master nomal faults, in the Eastern Cordillera of Colombia.
Andrés Mora, Mauricio Parra
doaj  

Provenance reconstructions. Article 1. Mineralogical and petrographic approaches and methods

open access: yesЛитосфера, 2020
Research subject. This is the first in the series of four articles, which aims to review existing provenance reconstruction tools.Methods and materials.
A. V. Maslov   +3 more
doaj   +1 more source

Cretaceous geology of Lower California

open access: yes, 1935
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Anderson, Frank Marion, Hanna, G Dallas
openaire   +2 more sources

Geology of groundwater occurrences of the Lower Cretaceus sandstone aquifer in East Central Sinai, Egypt

open access: yesAcque Sotterranee, 2017
The present study focused on investigating the impact of geological setting on the groundwater occurrences of the Lower Cretaceous sandstone aquifer (Malha).
Saad Younes Ghoubachi
doaj   +1 more source

"European" ammonites in the Lower Cretaceous of Antarctica

open access: yes, 1982
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

History, current state, and prospects for studying the Lower Cretaceous reservoirs in the Tersko-Sunzhenskaya oil and gas region

open access: yesЗаписки Горного института
Cretaceous deposits represent one of the most important stratigraphic intervals characterized by the development of hydrocarbon reservoir rocks. Given the growing demand for energy resources and the depletion of proven reserves, further study into the ...
Timur B. Ezirbaev
doaj  

Facies and the Architecture of Estuarine Tidal Bar in the Lower Cretaceous Mcmurray Formation, Central Athabasca Oil Sands, Alberta, Canada

open access: yesEnergies, 2019
In this study, data obtained from the Lower Cretaceous McMurray Formation in the central Athabasca Oil Sands, northeastern Alberta, Canada, are examined and used to establish the architecture of stacked fluvial and estuarine tidal bar deposits.
Mingming Tang   +3 more
doaj   +1 more source

New occurrence of †Mawsoniidae (Sarcopterygii, Actinistia) in the Morro do Chaves Formation, Lower Cretaceous of the Sergipe-Alagoas Basin, Northeastern Brazil [PDF]

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Naturais, 2010
The goal of this paper is to describe a new occurrence of †Mawsoniidae in the Morro do Chaves Formation, Sergipe- Alagoas Basin. This stratigraphical unit is represented by an intercalation of coquina and shale beds, deposited in a lacustrine ...
Valéria Gallo   +2 more
doaj  

Some Lower Cretaceous Terebratelloidea

open access: yes, 1965
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

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