Two new planktonic crustaceans from the Maquoketa shale (Ordovician) of Illinois [PDF]
, 1944 Justin W. Wells
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Karstification of Ordovician carbonate reservoirs in Huanghua depression and its control factors [PDF]
, 2020 Jinning Zhang +4 more
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Isotope-geochemical variations as a reflection of geobiological factors in the evolution of the Late Ordovician reef ecosystem Bol'shaya Kos'yu (Ilych River, Northern Urals) [PDF]
, 2020 Любовь Алексеевна Шмелева
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Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif [PDF]
, 2010 A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge +4 more
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New species of Estlandia (Clitambonitidina, Brachiopoda) in the Upper Ordovician of the East Baltic [PDF]
, 2002 Michael Zuykov, Linda Hints
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An airborne geophysical survey of part of west Dyfed, South Wales, and some related ground surveys [PDF]
, 1986 A detailed airborne geophysical survey has been made of part of west Dyfed at a flying height of 75 m with magnetic, electromagnetic (VLF-EM) and radiometric equipment mounted in a helicopter.
Cave, R., Cornwell, J.D.
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Enhanced microbial activity in carbon-rich pillow lavas, Ordovician, Great Britain and Ireland [PDF]
, 2015 John Parnell +5 more
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Recognition of Shoaling Cycles in the Maquoketa Group (Upper Ordovician) of Southern Indiana
, 1992 ALAN SWENSON
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A geological fence diagram for England and Wales [PDF]
, 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
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