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1979 | 24 | 1 |

Tytuł artykułu

New evidence on graptolite succession across the Ordovician - Silurian Boundary in the Asian Part of the USSR

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Continuous sections of the Upper Ordovician-Lower Silurian terrigenic-carbonate deposits in the Basin of the Kolyma River, Southern Kazakhstan and Tien Shan display a sequence of the following biostratigraphic units: the supernus Zone with the longispinus and pacificus subzones, the extraordinarius, persculptus and acuminatus Zones. Graptolites from the above sections are associated with diverse benthic fauna, namely: brachiopods, trilobites and corals. The persculptus Zone of Kazakhstan and its analogues in the basin of the Kolyma River are distinguished by the occurence of the Dalmanitina - Hirnantia assemblage. The supernus extraordinarius and persculptus/acuminatus boundaries are the most distinct correlative levels as far as graptolites are concerned. The former is marked by full disappearance of typically Ashgillian graptoloids, while the latter displays distinct renewal of diplograptid fauna due to the simultaneous appearance of various morphologic features in several new lineages. The extraordinarius and persculptus Zones are distinguished by the development of impoverished diplograptid assemblages. They contain a few new clements, while species of the genus Climacograptus have broad Ashgillian-Llandovery biozones. The bottom of the acuminatus Zone coincides with the disappearance of brachiopod and trilobite associations which were traditionally believed to be Ordovician.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

24

Numer

1

Opis fizyczny

p.125-136,fig.,ref.

Twórcy

autor
  • VSEGEI, Srednij pr.74, Leningrad B-26
  • Research Institute of Arctic Geology, Leningrad
  • Central Kazakhstan Geology Survey, Karaganda
autor
  • Institute of Geological Science, Academy Science Kazakhstan, SSR, Alma-Ata, USSR

Bibliografia

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  • CHURKIN, M., JR. 1963. Ordovician trilobites from graptolitic shales in central Idaho. - Journ. Paleontol., 37, 2, 421-428.
  • - et al. 1971. Graptolite succession across the Ordovician-Silurian boundary in South-eastern Alaska. - Quart. Journ. geol. Soc. London, 126, 3, 319-330.
  • JACKSON, D. E. 1966. Graptolite facies of the Canadian Cordillera and Arctic Archipelago: A review. - Bull. Canad. Petrol. Geol., 14, 4, 469-485.
  • - 1973. Amplexograptus and Glyptograptus isolated from Ordovician limestones in Manitoba. - Bull. geol. Surv. Canad., 222, 1-8.
  • - and LENZ A. C. 1962. Zonation of Ordovician and Silurian graptolites of Northern Yukon, Canada. - Bull. Amer. Assoc. Petrol. Geolog., 46, 1, 30-45.
  • KIM. A. I., APEKIN, J. N., ERINA, M. V. 1975. On the Ordovician and Lower Silurian stratigraphy of the Zeravshan-Alai Belt (Shakhriomon key section) (in Russian). - Dokl. Akad. Nauk. SSSR, 220, 4, 910-913.
  • KOREN', T. N. 1979. Pacificograptus - new genus of the Late Ordovician Diplograptida (in Russian). - Palaeont. Zhur., 1, (in press).
  • - 1979. (in preparation). In: S. M. Badaletov (ed.), The Ordovician-Silurian boundary in Kazakstan. - Nauka Alma-Ata.
  • - , SOBOLEVSKAYA, R. F. 1977. A new standard succession of graptolites assemblages at the Ordovician/Silurian boundary (North-eastern USSR) (in Russian) - Dokl. Akad. Nauk SSSR, 236, 4, 950-953.
  • LENZ, A. C. and PEDDER, A. E. H. 1972. Lower and Middle Paleozoic sediments and paleontology of Royal Creek and Peel River, Yukon, and Rowell Creek. N. W. T. - 24th Internat. Geolog. Congr., 601 Rooth St. Ottawa, K1A. Field excurs. A 14, 1-38.
  • MIKHAJLOVA, N. F. 1970a. On the occurrence of Glyptograptus persculptus Salter from the Dalmanitina beds of Kazakhstan (in Russian) - Izv. Akad. Nauk. Est. SSR, 19, chem.-geol., 2, 177-178.
  • - 1970b. Graptolites and biostratigraphy of the Ordovician and Lower Silurian deposits of Kazakhstan (in Russian) - Doctor thesis, MS, Novosibirsk, 70 pp.
  • - 1970c. New Late Ordovician graptolites of Kazakhstan (in Russian). - Paleont. Zhur., 3, 101-103.
  • - 1973. Upper Ordovician and Lower Silurian graptolites of Kazakhstan (in Russian). In: Novoje v paleontologii Sibiri Srednei Azii. Nauka, Moskva. 14-18.
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  • MU, A. T., LEE, C. K. and GEH, M. Y. 1960. Ordovician Graptolites from Kinjiang (Sinkiang). - Acta Palaeont. Sinica, 8, 1, 27-39.
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  • - 1972. The Ordovician of Kazakhstan (in Russian). Pt. 1. Stratigraphy. - Nauka, Kazakh. SSR, pp. 242.
  • - 1976. Ordovician-Silurian deposits in the Chu-Ili mountains (Kazakhstan) and the problem of the Ordovician/Silurian boundary. - In: M. G. Basset (ed.). The Ordovician System: Proceedings of a Palaeont. Assoc. Symposium, Birmingham, 1974. 696 pp. Univ. Wales Press and Nat. Mus. of Wales, Cardiff.
  • NIKOLAEV, A. A, ORADOVSKAYA, M. M., PREOBRAZHENSKY, B. V., OBUT, A.M., SOBOLEVSKAYA, R. F., KABAN'KOV, V. J. 1974. Upper Ordovician standard section in the Northeastern USSR. In: Paleozoic standards sections of the Northeastern USSR (in Russian). Magadan, 3-136.
  • OBUT, A.M., SOBOLEVSKAYA, R. F. 1964. Ordovician graptolites of Taimyr (in Russian). Nauka, Moskva, 83 pp.
  • - , - , BONDAREV, V. I. 1965. Silurian graptolites of Taimyr (in Russian). Nauka, Moskva, 120 pp.
  • - , - , NIKOLAEV, A. A. 1967. Lower Silurian graptolites and stratigraphy of the marginal uplifts of the Kolyma Massif (in Russian). - Nauka, Moskva, 162 pp.
  • RIVA, J. 1969. Middle and Upper Ordovician graptolite faunas of St. Laurence Lowlands of Quebec, and of Anticosti Island. - In: M. Kay (ed.) Journ. "North Atlantic - geology and continental drift", a symposium. - Mem. Am. Ass. Petrol. Geol., 12, 513-556.
  • - 1970. Thrusted Paleozoic Rocks in the Northern and Central HD Range, Northeastern Nevada. - Bull. Geol. Soc. Amer., 81, 2689-2716.
  • - 1974. A revision of some Ordovician graptolites of eastern North America. - Palaeontology, 17, 1, 1-40.
  • - 1976. Climacograptus bicornis bicornis (Hall) its ancestor and likely descendants. - In: M. G. Bassett (ed.). The Ordovician System: Proceedings of a Palaeontological Assoc. Sympos. Birmingham, 1974. 696 pp. University of Wales Press and Nat. Mus. of Wales, Cardiff.
  • ROSS, R. J. and BERRY, W. B. N. 1963. Ordovician graptolites of the Basin Ranges in California, Nevada, Utah, and Idaho. - Bull. Geol. Surv., 1134, 177 pp.
  • SENNIKOV, N. V. 1976. Lower Silurian graptolites and stratigraphy of Gorny Altai (in Russian). - Tr. Inst. Geol. Geof. SO Akad. Nauk SSSR, 304, 274 pp.
  • SOBOLEVSKAYA, R. F. 1970. Graptolite biostratigraphy of the Middle and Upper Ordovician for marginal uplift of the Kolyma Massif (in Russian). - Doctor thesis, MS, Novosibirsk, 26 pp.
  • - 1971. New Ordovician graptolites from the Omulev Mountains (in Russian). - Paleont. Zhur., 1, p. 82-87.
  • - 1974. New Ashgillian graptolites from the Middle Kolyma Basin (in Russian). In: A M. Obut (ed.) Graptolity USSR. Nauka, Moskva, 63-71.
  • THORSTEINSSON, R. 1958. Cornwallis and Little Cornwallis Islands, District of Franklin, North-west Territories. - Mem. Geol. Surv. Canada, 294, 1-118.
  • TOGHILL, P. 1970. Highest Ordovician (Hartfell Shales) graptolite faunas from the Moffat Area, South Scotland. - Bull. British Mus. Nat. History, Geology, 19, 1, 26 pp.
  • TSAI, D. T. 1974. Ordovician graptolitic zones of Kazakhstan. In: A A. Abdulin et al. (eds) Prepaleozoic and Paleozoic of Kazakhstan, 1. "Stratigraphy of Prepaleozoic, Cambrian, Ordovician and Silurian of Kazakhstan". - Nauka, Alma-Ata, 216-223.

Typ dokumentu

Bibliografia

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