Results 111 to 120 of about 58,643 (272)

Multiply remagnetized Silurian carbonate sequence in Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2008
Palaeomagnetic studies were carried out on Silurian sedimentary rocks of Estonia. The studied sequence (126 samples from 4 localities) is composed of Silurian lime- and dolostones of Llandovery and Wenlock age (444–423 Ma).
Preeden, Ulla   +3 more
doaj  

Upper Ordovician cryptostomatid bryozoans and microfossils from the Don Braulio Formation, Eastern Precordillera, Argentina [PDF]

open access: yes, 2014
En la clásica sección de la Quebrada de Don Braulio, en la Precordillera Oriental de la Provincia de San Juan, afora la Formación Don Braulio de edad hirnantiana.
Beresi, Matilde Sylvia   +3 more
core  

Paleomagnetic dating of rocks of the Bolshesyrsky magmatic area of the Minusinsky basin

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
Paleomagnetic dating of the Bolshesyrsky igneous area, a thick intraplate igneous complex of Khakassia, was carried out. The complex has not been dated due to the peculiarities of the stratigraphy and the lack of suitable rocks for applying the methods ...
D.V. Kovalenko, M.V. Buzina
doaj   +1 more source

Chitinozoan diversity in the East Baltic Silurian [PDF]

open access: yesEstonian Journal of Earth Sciences, 2009
Data on the diversity of the East Baltic Silurian chitinozoans have been compared to global chitinozoan biozones that are approximately correlated with the graptolite scale. The total diversity and balanced total diversity curves have three main positive
Nestor, Viiu
doaj  

A mineral reconnaissance survey of the Abington-Biggar-Moffat-area, south-central Scotland [PDF]

open access: yes, 1979
Panned heavy mineral concentrates, mostly obtained from stream sediments, were collected from 195 sites in the Abington-Biggar-Moffat area. The project area, which lies immediately east of the formerly important mining district of Wanlockhead ...
Dawson, J., Floyd, J.D., Phillip, P.R.
core  

Bedrock geology map, Jo Daviess County, Illinois [PDF]

open access: yes, 2000
Ope
McGarry, Christopher S.
core  

Microscopic study of “siliceous rocks” of Sarbay formation in Mednogorsky ore district (South Ural)

open access: yesRUDN Journal of Engineering Research, 2014
The article shows the results of microscopic study of siliceous rocks Early Silurian Sarbay formation of the Southern Urals. Siliceous rocks Early Silurian Sarbay formation of the Southern Urals have a voulcanische genesis.
V V Diakonov   +3 more
doaj  

Regional similarities in the distributions of well yield from crystalline rocks in Fennoscandia [PDF]

open access: yes, 2010
Well yields from Precambrian and Palaeozoic bedrock in Norway, Sweden and Finland exhibit very similar and approximately log-normal distributions: all three data sets exhibit a median yield of 600–700 L hr-1, despite the differences in climate and ...
Banks, D.   +4 more
core  

Regional geochemical and geophysical surveys in the Berwyn Dome and adjacent areas, north Wales [PDF]

open access: yes, 1984
This report describes stream sediment and gravity surveys carried out across the Berwyn Dome and adjacent areas. The gravity survey confirmed the presence of a broad regional Bouguer anomaly low in the central part of the Dome, on which is ...
Cooper, D.C., Cornwell, J.D., Rollin, K.
core  

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