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1
Devonian trilobites of the southern Cantabrian mountains ...
Age: Upper Emsian-Eif elian transition. P22. Stratigraphic level like P19, 250 m WSW of the Abadía of Lebanza. Coord.: 0°52 ' 04"/42°57 ' 42* G. (Greenops ) chaconae Arbizu, 1979, Treveropyge henryi Arbizu, 1979 together with p. (□Proetus ...
2
First Conference on Geology of Indochina: 5-7, December, ...
... the Siphonodella sulcata Zone Frasnian-Pamennian boundary = base of the Middle Palmatolepis triangularis Zone Givetian-Frasnian boundary - base of the Lower Polygnathus asvro- metrlcuB Zone Emsian-Eif elian boundary = baBe of the ...
Pham Quoc Tuong, Vietnam (Democratic Republic). General Dept. of Geology, 1980
3
Devonian biostratigraphy of New York - Volumele 1-2 - Pagina 10
Consequently, the Eif elian-Givetian boundary probably lies close to the Cherry Valley. The remainder of the Hamilton Group is correlated with the Givetian of Europe by means of its ammonoids and conodonts . Controversy over the Medial or ...
William Albert Oliver, Gilbert Klapper, International Union of Geological Sciences. Subcommission on Devonian Stratigraphy, 1981
4
Global bio-events: a critical approach : proceedings of ... - Pagina 206
Its base is connected with termination of the dolomitic ( "Eif elian " - type ) sedimentation, but this facies event is not yet fully understood (Narkiewicz & Olkowicz-Paprocka 1981) and cannot be dated precisely. It is field of speculation, that the ...
5
Paleozoic paleogeography of the Western United States: ... - Pagina 474
The early Eif elian-early Givetian unconformity is correlative with orogenies postulated to have affected southeastern Alaska and the eastern Paleozoic belt of the California Klamath Mountains (Boucot and others, 197^). It is also analagous to ...
A. Eugene Fritsche, Calvin H. Stevens, John Harris Stewart, 1977
Extensive acid volcanism is known to occur only in Devonian (Eif elian-Givetian) time. 2. Analysis of geotectonic evolution of Mountainous Altai as part of Altai -Sayan region shows that when Devonian volcanism began, the territory already ...
International Volcanological Association, 1965
7
Sedimentary and tectonic structures in the Saxothuringian ... - Pagina 49
... (Givetian); 9 - reef limestones (Frasnian-Givetian) ; 10 - spilites, keratophyres, tuffs ( Givetian-Eif elian) ; 11 - slates (Devonian); 12 - sandy slates (Devonian); 13 - granites (Silesian); 14 - slates, greywackes (Lower Devonian-Silurian ?) ...
Problemnai︠a︡ komissii︠a︡ IX mnogostoronnego sotrudnichestva akademiĭ nauk sot︠s︡ialisticheskikh stran "Geosinklinalʹnyĭ prot︠s︡ess i stanovlenie zemnoĭ kory.", Zentralinstitut für Physik der Erde (Akademie der Wissenschaften der DDR), 1984
8
Volcanogenic Rocks and Methods of Studying Them: Based on ...
Here, bodies of automagmatic breccias of liparitic porphyries are discordant with respect to the surrounding argillites and siltstones [236] of the Sokol'naya Croup (Eif elian) . In the sedimentary rocks, a small zone of compaction has been noted ...
Vladimir Sergeevich Koptev-Dvornikov, Elizaveta Brunovna I︠A︡kovleva, Marianna Aleksandrovna Petrova, 1975
9
Contributions to the geologic time scale: papers given at ... - Pagina 339
... Frasnian 1. 2 1. 1 Givetian 1.0 0.9 Eif elian 0 7 1.3 06 Upp 1 0 Emsian Low 0 8 0 6 Siegenian 0 8 0. 7 Gedinnian c — □ — — _~ — 1 \ ,
George Vincent Cohee, Martin Fritz Glaessner, Hollis Dow Hedberg, 1978
10
Journal of research of the U.S. Geological Survey
Seven conodont collections that clearly establish the age of the part of the Carey Dolomite exposed at Fish Creek Reservoir as Eif elian (early Middle Devonian i were made from crinoidal streaks in units a, c, and d in the lower 31 m (100 ft) of ...
Geological Survey (U.S.), 1975
