Section of Permian deposits and fusulinids in the Halvan Mountains, Yazd province, Central Iran
Tóm tắt
The Permian section situated northwest of Tabas in the Halvan Mountains is studied and fusulinids occurring in the section are described. The Chili, Sartakht, and Hermez formations distinguished in the section are separated by horizons of bauxitic laterite and belong to the Khan Group formerly ranked as a synonymous formation. Fusulinids occur at two levels in the section. The lower one confined to the Chili Formation yields the so-called Kalaktash fusulinid assemblage of the late Sakmarian age. The second late Asselian assemblage has been discovered in pebbles from conglomerate-breccia in the basal laterite of the Sartakht Formation. A brief characterization of fusulinids is presented and three new species are described. The new Benshiella genus is discriminated from the Rugosofusulinidae family. As Skinner and Wilde (1965, 1966) changed the original diagnosis of the Pseudofusulina genus, we suggest, regarding all species, which have been attributed to this genus but do not satisfy the new diagnosis, as representing the new Nonpseudofusulina genus.
Từ khóa
Tài liệu tham khảo
A. Aghanabati, “Etude geologique de la region de Kalmard (W. Tabas),” Rep. Geol. Surv. Iran., No. 35, 1–230 (1977).
L. Angiolini, M. H. Stephenson, and E. Ja. Leven, “Correlation of the Lower Permian Surface Saiwan Formation and Subsurface Haushi Limestone, Central Oman,” GeoArabia 11(3), 17–38 (2006).
S. Arefifard and V. I. Davydov, “Permian in Kalmard, Shotori and Shirgesht Areas, Central-Eastern Iran,” Permophiles 44, 28–32 (2004).
G. M. Belyaev and D. M. Rauzer-Chernousova, “On Some Fusulinids from the Schwagerina Horizon (Group Pseudofusulina uralica Krotov),” Tr. Geol. Inst. AN SSSR 7, 169–196 (1938) [in Russian].
F. R. Bensh, “Late Carboniferous and Early Permian Fusulinids of Northern Fergana,” in Stratigraphy and Paleontology of Uzbekistan and Adjacent Areas (Fan, Tashkent, 1962), pp. 186–252 [in Russian].
F. R. Bensh, “Revised Systematics of Pseudofusulinids of the Genus Rseudofusulina Dunbar et Skinner, 1931, and Close Genera,” Vopr. Mikropaleontol., No. 29, 20–53 (1987) [in Russian].
V. I. Davydov and S. Arefifard, “Permian Fusulinid Fauna of Peri-Gondwanan Affinity from the Kalmard Region, East-Central Iran and Its Significance for Tectonics and Paleogeography,” Palaeontologia Electronica 10(2), 1–40 (2007).
J. Deprat, “Etude des Fusulinides de Chine et d’ Indochine et classification des calcaires a fusulines (IVe Memoires); Les Fusulinides des calcaires carboniferiens et permiens du Tonkin, du Laos et du Nord-Annam,” Mem. Service Geol. Indochine, Hanoi-Haiphong 4(1), pp. 1–30 (1915).
C. O. Dunbar and J. W. Skinner, “New Fusulinid Genera from the Permian of West Texas,” Am. J. Sci., Ser. 5, 22, pp. 252–268 (1931).
H. Forke, “Biostratigraphic Subdivision and Correlation of Upper Carboniferous/Lower Permian Sediments in the Southern Alps: Fusulinidean and Conodont Faunas from the Carnic Alps (Austria/Italy), Karavanke Mountains (Slovenia), and Southern Urals (Russia),” Facies 47, pp. 201–276 (2002).
R.V. Goryunova, Permian Bryozoans of Pamirs (Nauka, Moscow, 1975) [in Russian].
L. P. Grozdilova and N. S. Lebedeva, “Lower Permian Foraminifers of Northern Timan,” Tr. VNIGRI, No. 179, 161–183 (1961) [in Russian].
F. Kahler, “Bemerkenswerte Fusuliniden-Funde im ostmediterranen und iranischen Raum,” Neue Jahrb. Palaont. Mh. (Stuttgart) 4, pp. 199–216 (1977).
E. Ja. Leven, “Early Permian fusulinids from the Central Pamir,” Riv. Ital. Paleontol. Stratigr. 99(2), pp. 151–198 (1993).
E. Ja. Leven, “Comparative Characteristics of Permian and Triassic Deposits in the Southern Pamirs and Central Afghanistan,” Izv. Vyssh. Uchebn. Zaved., Geol. Razved., No. 12, 20–29 (1983) [in Russian].
E. Ja. Leven, “Permian Stratigraphy and Fusulinids of Afghanistan with Their Paleogeographic and Paleotectonic Implication,” Spec. Pap. Geol. Soc. Am., No. 31, 1–138 (1997).
E. Ja. Leven, “Problems of Nomenclature and Composition of the Genus Pseudofusulina Dunbar et Skinner, 1931, and Approach to Solving Them,” News Paleontol. Stratigr. (Novosibirsk) 49(10,11), pp. 86–88 (2008).
E. Ja. Leven and M. N. Gorgij, “Upper Carboniferous-Permian Stratigraphy and Fusulinids from the Anarak Region, Central Iran,” Russ. J. Earth Sci. 8, p. 25 (2006), ES2002, doi:10.2205/2006ES000200.
E. Ja. Leven and M. N. Gorgij, “Fusulinids of the Khan Formation (Kalmard Region, Eastern Iran) and Some Problems of Their Paleobiogeography,” Russian J. Earth Sci. 9, pp. 1–10 (2007).
E. Ja. Leven and C. F. Scherbovich, Fusulinids and Stratigraphy of Asselian Stage in Darvaz (Nauka, Moscow, 1978) [in Russian].
E. Ja. Leven and A. Taheri, “Carboniferous-Permian Stratigraphy and Fusulinids of East Iran. Gzhelian and Asselian Deposits of the Ozbak-Kuh Region,” Riv. Ital. Paleontol. Stratigr. 109(3), pp. 399–415 (2003).
Z. Nie and Z. Song, “Fusulinids of Lower Permian Tunlonggongba Formation from Rutog of Xizang,” J. Wuhan College Geol. 19(1), pp. 43–55 (1983).
D. M. Rauzer-Chernousova, “Rugosofusulina, the New Genus of Fusulinids,” Etyudy Mikropaleontol. 1(1), 9–26 (1937) [in Russian].
D. M. Rauzer-Chernousova and S. F. Scherbovich, “Schwagerinids from European Part of the USSR,” Tr. GIN AN SSSR, Ser. Geol., No. 105, 61–117 (1949) [in Russian].
D. M. Rauzer-Chernousova, Foraminifers of Sakmarian Stage Stratotype (Sakmara City, Southern Urals) (Nauka, Moscow, 1965) [in Russian].
Reference-Book on Systematics of Paleozoic Foraminifers (Nauka, Moscow, 1996) [in Russian].
S. T. Remizova, Fuzulinoids of Timan: Evolution, Biostratigraphy and Paleobiogeography (Ural. Otd. Ross. Akad. Nauk, Yekaterinburg, 2004) [in Russian].
S. E. Rozovskaya, Composition, System and Phylogeny of the Order Fuzulinida (Nauka, Moscow, 1975) [in Russian].
V. E. Ruzhentsev, “Asselian Stage of the Permian System,” Dokl. Akad. Nauk SSSR 99(6), 1079–1082 (1954) [in Russian].
E. Saurin, “Notes paleontologiques sur quelques calcaires a fusulinides du nord Viet-Nam. II. Nouvelles observations sur les calcaires de Ky Lua,” Archives Geol. Viet-Nam. 1, pp. 3–21 (1954).
D. F. Shamov, “Group of Swollen-Fusiform Pseudofusulines from the Schwagerina Horizon of the Ishimbaevo-Sterlitamak Petroleum Basin,” Tr. GIN Akad. Nauk SSSR, No. 13, 139–154 (1958) [in Russian].
D. F. Shamov and S. F. Scherbovich, “Some Pseudofusulines from the Schwagerina Horizon of Bashkortostan,” Tr. GIN AN SSSR, Ser. Geol., No. 105, 163–170 (1949) [in Russian].
A. P. Shirinkina, A. P. Morozova, O. A. Solov’eva, and I. I. Ogneva, Fuzulinids of Pseudofusulina redisequa and Pseudofusulina sonsavutas Groups from Artinskian Deposits in the Perm Region of Cis-Urals (Ural. Nauchn. Tsentr. AN SSSR, Sverdlovsk, 1980) [in Russian].
J. W. Skinner and G. L. Wilde, “Permian Biostratigraphy and Fusulinid Faunas of the Shasta Lake Area, Northern California,” Univ. Kansas Paleontol. Contrib., No. 6, 1–98 (1965).
J. W. Skinner and G. L. Wilde, “Type Species of Pseudofusulina Dunbar et Skinner,” Univ. Kansas. Paleontol. Contrib., No. 13, 1–7 (1966).
I. S. Suleimanov, “New Species of the Genus Rugosofusulina Rauser,” Tr. GIN AN SSSR, Ser. Geol., No. 105, 44–60 (1949) [in Russian].