Middle Darriwilian conodont zones in the uppermost San Juan limestone and the lower member of the Las Aguaditas formation, central Precordillera of San Juan, Argentina [PDF]
, 2013 The geological province of Precordillera is located in western Argentina. It extends 450 km meridionally and 110 km from east to west (Fig. 1) (Furque and Cuerda, 1979).
Albanesi, Guillermo Luis +2 more
core
A reconnaissance geochemical drainage survey of the Criffel-Dalbeattie granodiorite complex and its environs [PDF]
, 1977 Regional geochemical reconnaissance by stream sediments and panned concentrates was undertaken over an area of 850 km 2 of south-west Scotland. Rocks of Ordovician to Permian age are exposed within the area but the major part is occupied by the ...
Brown, M.J. +3 more
core
Preliminary Investigation of the Ground-Water Resources of Baxter, Fulton, Izard and Sharp Counties, Arkansas [PDF]
, 1980 One hundred and seventy-seven drillers\u27 well reports were used to investigate the groundwater resources of Baxter, Fulton, Izard, and Sharp counties. The most widely utilized aquifer zone is composed of the Cotter and Jefferson City dolomites.
Liebelt, Mike +2 more
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Conellae, enigmatic structures on cephalopod shells—shapes, distribution, and formation [PDF]
, 2019 Conellae, enigmatic cone-shaped structures which can be found on the surface of internal moulds of cephalopod shells (predominantly of ammonoids), are regarded herein as the product of remote (biologically induced) biomineralization formed in closed-off ...
Hoffmann, René +2 more
core +1 more source
The COSC-2 drill core and its well-preserved lower Palaeozoic sedimentary succession – an unexpected treasure beneath the Caledonian nappes [PDF]
Estonian Journal of Earth SciencesThe Collisional Orogeny in the Scandinavian Caledonides (COSC) project focuses on processes related to the closure of the Iapetus Ocean, causing the OrdovicianâSilurian continentâcontinent collision between Baltica and Laurentia.
Oliver Lehnert +18 more
doaj +1 more source
Devonian Sandstone Lithostratigraphy, Northern Arkansas [PDF]
, 1977 Two areas of Devonian sandstone development may be recognized in northern Arkansas. In northwestern Arkansas, the Clifty Formation comprises a massively bedded, super mature quartz arenite of Middle Devonian age overlain by thinner bedded, phosphatic ...
Hall, Jeffery D., Manger, Walter L.
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Discriminating cool-water from warm-water carbonates and their diagenetic environments using element geochemistry: the Oligocene Tikorangi Formation (Taranaki Basin) and the dolomite effect [PDF]
, 2004 Fields portrayed within bivariate element plots have been used to distinguish between carbonates formed in warm- (tropical) water and cool- (temperate) water depositional settings.
Al‐Aasm I. S. +14 more
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Ar-40/Ar-39 dating of mesothermal, orogenic mineralization in a low-angle reverse shear zone in the Lower Palaeozoic of the Anglo-Brabant fold belt, Belgium [PDF]
, 2002 A
Boven, A., Dewaele, Stijn, Muchez, Ph.
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Search for, and study of, paleozoic impact ejecta: Progress made during the past year [PDF]
Nodule-like objects which the author believes to be impact bombs had been found in Middle Ordovician rocks of southeastern Wisconsin and northern Illinois.
Read, William F.
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