Results 71 to 80 of about 39,712 (281)

Lower Mississippian Lithostratigraphy, Northern Arkansas [PDF]

open access: yes, 1976
Lower Mississippian lithostratigraphic units in northern Arkansas are (ascending order) the Bachelor, St. Joe, and Boone Formations. These formations disconformably overlie Middle Ordovician to Upper Devonian strata and are overlain disconformably by ...
Manger, Walter L., Shanks, Jack L.
core   +2 more sources

Fault Slip and Exhumation History of the Willard Thrust Sheet, Sevier Fold‐Thrust Belt, Utah: Relations to Wedge Propagation, Hinterland Uplift, and Foreland Basin Sedimentation [PDF]

open access: yes, 2019
Zircon (U‐Th)/He (ZHe) and zircon fission track thermochronometric data for 47 samples spanning the areally extensive Willard thrust sheet within the western part of the Sevier fold‐thrust belt record enhanced cooling and exhumation during major thrust ...
Barber, D. E.   +5 more
core   +2 more sources

Late Famennian correlation by miospores between the Refrath 1 borehole (Bergisch Gladbach-Paffrath Syncline, Germany) and the reference section of Chanxhe (Dinant Syncline, Belgium)

open access: yesCarnets de Géologie, 2005
The Bergisch Gladbach-Paffrath Syncline and the Dinant Syncline are both part of the Ardennes-Rhenish Massif but are separated by some 100 km. In the Upper Devonian succession of the Bergisch Gladbach-Paffrath Syncline (The Bergisches Land), the ...
Hartkopf-Fröder Christoph   +1 more
doaj  

Gold in Devono-Carboniferous red beds of northern Britain [PDF]

open access: yes, 2015
We are grateful to D. Craw and an anonymous reviewer for comments that helped to clarify the paper.
Bellis, David   +3 more
core   +1 more source

Stratigraphy of the Upper Devonian - Lower Carboniferous of south-west of Lyzha-Kyrtael swell (Pechora Plate eastward) [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2023
A new local stratigraphic scheme is proposed for the upper Famennian - Serpukhovian interval of the south-west of Lyzha-Kyrtael Swell. The stratigraphic sequence is composed of the Famennian carbonates of the Kamenka Formation, the Famennian - middle ...
Zhuravlev A.V.
doaj  

BARITE, HEMATITE AND CINNABAR ORE DEPOSITS IN THE DUSINA AREA, MID-BOSNIAN SCHIST MOUNTAINS

open access: yesRudarsko-geološko-naftni Zbornik, 1996
In the Dusina area, which is built up of Lower Palaeozoic metasediments, Devonian carbonate complex and Upper Palaeozoic metarhyolites unconformab1y overlain by Upper Permian sediments, numerous ore occurrences have been investigated: (a) "stratabound ...
Ivan Jurković
doaj  

A geological fence diagram for England and Wales [PDF]

open access: yes, 2012
This report contains a brief description of the data and methodology used to compile the National Geological Fence Diagram (NGFD). The NGFD comprises a network of intersecting geological cross-sections covering England and Wales, to a minimum depth of
Ambrose, K.   +7 more
core  

UPPER DEVONIAN CONODONTS FROM LADAKH, HIMALAYA, INDIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2020
The preserit paper describes Upper Devonian conodont fauna from the black and bluish limestone succession lying immediately above the Muth Quartzite exposed near the village Tanze, Luneak valley, Ladakh.
V. J. GUPTA, S. UPPAL
doaj  

The Timan-Pechora basin. The structure and main stages of development

open access: yesGeoresursy, 2017
The lack of complete inheritance in the history of the Timan-Pechora basin development has led to a discrepancy between the basement surface plans and the individual sub-levels and their complexes. In the lower part of the section, the structures inherit
A.V. Stoupakova
doaj   +1 more source

The concealed Caledonide basement of eastern England and the southern North Sea : a review [PDF]

open access: yes, 1995
Field mapping, analysis of borehole core and studies of geophysical potential field and seismic data can be used to demonstrate the existence of a number of distinct crustal blocks within Eastern Avalonia beneath eastern England and the southern North ...
England, R., Lee, Mick, Pharaoh, Tim
core   +1 more source

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