Results 71 to 80 of about 1,487,618 (230)

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  

1. On the upper limits of the Devonian system [PDF]

open access: yesProceedings of the Geologists' Association, 1872
n ...
openaire   +1 more source

Devonian plates.

open access: yes, 1913
Lower devonian plates xvii-xcviii.--Middle devonian plates vii-xliv.--Upper devonian plates xlv-lxxiii.Mode of access ...
Maryland Geological Survey.
core  

Paleogeography of the Pechora-Barents Sea paleobasins in the Late Ordovician-Early Devonian [PDF]

open access: yesНефтегазовая геология: Теория и практика
Modern studies have made it possible to clarify and detail the overall picture of paleogeographic development and establish the basic patterns of the structure of Upper Ordovician-Lower Devonian sedimentary column in the Pechora-Barents Sea megabasin ...
Taninskaya N.V.   +6 more
doaj  

Upper Devonian Plant Microfossils from Eastern and Arctic Canada: Their Taxonomy and Palaeoecological Significance [PDF]

open access: yes, 1965
Plant microfossils are extracted from strata of Upper Devonian age occurring at two previously uninvestigated localities in Eastern Canada and in the Canadian Arctic.
Brideaux, Wayne Wilfred
core   +1 more source

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

Geochemistry of organic matter in carbonate Devonian sediments of the South Tatar arch

open access: yesGeoresursy
The article deals with the lithology and geochemistry of organic matter of Upper Devonian-Lower Carboniferous deposits (Carbonate Devonian) of the eastern part of the South Tatar arch.
A. Yu. Orlova   +5 more
doaj   +1 more source

Sculpture education program / Upper Iowa Univesity

open access: yes, 1998
[Title], Upper Iowa University Digital Archives, [Reference URL].
Upper Iowa University
core  

Late Cenozoic Sediment Provenance in the Northern Canterbury Basin, Aotearoa New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 4, December 2026.
Late Cenozoic strata of the northern Canterbury Basin record uplift and erosion of mountain ranges adjacent to the transition from oblique subduction to strike‐slip on the Australian–Pacific plate boundary. Using the provenance of conglomerate clasts and sandstone samples, we reconstruct sediment transport pathways and, by inference, exhumation and ...
Matthew O. Parker   +5 more
wiley   +1 more source

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