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Glassy Microspherules (Microtektites) from an Upper Devonian Limestone
Science, 1992The properties of microspherules recovered from an Upper Devonian marine limestone immediately overlain by a geochemical anomaly of siderophile and chalcophile elements are similar to those of impact-derived microtektites. These microspherules are glass, have splash-form shapes, contain spherical vesicles and lechatelierite inclusions, and show oxide ...
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Summary of Upper Devonian Stratigraphy
American Midland Naturalist, 1935The Upper Devonian terrane of New York and adjoining regions consists of many thousands of feet of clastic deposits, in the east or southeast, thinning down to but a few hundred feet at the west or northwest. Beds which are coarse sandstones, or conglomerates, at the east, grade westward into shales that grow continually finer until at length they ...
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Cornulitids from the Upper Devonian of the Central Devonian Field, Russia
GFF, 2018Two species of cornulitids, Cornulites devonicus and C. sokiranae sp. nov., commonly occur on Upper Devonian (Upper Frasnian and Lower Famennian) brachiopod shells in the area of the Central Devoni...
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Upper Devonian intraclast parabreccias interpreted as seismites
Marine Geology, 1984Abstract Parabreccias found across a Devonian carbonate platform-basin margin, in the Carnic region (NE Italy), coeval to extensional tectonic fragmentation are interpreted as seismites s.l. They are characterized by plate-shaped, edge-smoothed, early lithified intraformational clasts of basinal micritic limestone embedded and usually floating in a ...
Claudia Spalletta, Gian Battista Vai
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VI.—Upper Devonian in Devonshire
Geological Magazine, 1880Having read Mr. Reid's letter on the above subject in the GeologicalMagazine for June, referring to the Chudleigh district, I beg to offer you a few lines of my own, in hopes of clearing up some confusion that may exist on the subject.
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Upper Devonian Charophyta of Western Australia
Micropaleontology, 2003Charophytes are described and illustrated from the Upper Devonian of Western Australia, including five genera and nine species of which four are new species. Most belong to the Family Umbellinaceae being placed in a new Class Umbellinaphyceae of the Division Charophyta.
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UPPER DEVONIAN UNCONFORMITY IN CENTRAL UTAH
Geological Society of America Bulletin, 1959Rocks equivalent to the upper Devonian Pinyon Peak limestone and Victoria quartzite occur unconformably above older rock units in central and east-central Utah. This unconformity is perhaps most profound in the Stansbury Range where Pinyon Peak limestone overlies rocks as old as the upper part of the Tintic quartzite and as young as Simonson dolomite ...
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Continental upper Devonian of northeastern Pennsylvania
Geological Society of America Bulletin, 1936INTRODUCTION The geological map of Pennsylvania, published in 1931 by the Pennsylvania Topographic and Geologic Survey and based, so far as the Devonian and Mississippian in the northeastern quarter are concerned, upon the work of the Second Pennsylvania Survey, gives a generalized, inaccurate picture of that region.
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An Upper Devonian species of Aorocrinva
Annals of the Carnegie Museum, 1938(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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