radiolaria - Marum

Bibliography - 1993 Radiolaria 14
Group, Kanto Mountains, central Japan. J. geol. Soc. Japan,
99/4, 289-291. (in Japanese)
Takahashi, O. & Ishii, A. 1993b. Paleo-oceanic
environment in the latest Cretaceous time, inffered from
radiolarian fauna of Amphipyndax tylotus Zone. N. Osaka
Micropaleont. spec. Vol., 9, 261-270. (in Japanese)
Takami, M., Isozaki, Y., Nishimura, Y. & Itaya,
T. 1993. Effect of detrital white mica and contact
metamorphism to K-Ar dating of weakly metamorphosed
accretionary complex - an example of Jurassic accretionary
complex in eastern Yamaguchi Prefecture, southwest Japan. J.
geol. Soc. Japan, 99/7, 545-563. (in Japanese)
Takashiroyama-Research-Group 1993. A new
information on the geological history of the Tamba Belt,
southwest Japan. Earth Sci., J. Assoc. geol. Collab. Japan,
47/6, 549-554. (in Japanese)
Takemura, A. & Yamakita, S. 1993. Late Permian
Neoalbaillella assemblage (Radiolaria) from a phospate
nodule in the Chichibu Belt, Shikoku, Japan. N. Osaka
Micropaleont. spec. Vol., 9, 41-49.
Takemura, S., Suzuki, S. & Ishiga, H. 1993.
Stratigraphy of the Kozuki formation, "Kamigori Zone",
southwest Hyogo Prefecture, Japan, reconsideration with the
discovery of Albaillella asymmetrica (radiolarian fossil) and
the structural analysis. J. geol. Soc. Japan, 99, 675-678. (in
Japanese)
Taketani, Y. 1993. Radiolarian fossils from the Site of
Ikego Ammunition Depot, Zushi City, Kanagawa Prefecture.
Final Report of Research on Fossil Calyptogena in Ikego,
Yokohama Defence Facilities Administration Bureau, , 341-
344. (in Japanese)
Theodhori, P., Peza, L.H. & Pirdeni, A. 1993.
Cretaceous pelagic and flysch facies of the Krasta-Cukali
Zone, Albania. Cretaceous Res., 14/2, 199-209.
The upper Tithonian to Upper Cretaceous and lower Tertiary
pelagic and flysch facies of the Krasta-Cukali zone in central
Albania are described from several stratigraphic sections, five in the
northern Cukali subzone and three in the larger central and southern
Krasta subzone. Preliminary facies analysis shows that pelagic
deposition in the Cukali subzone was at a greater depth than that of
the Krasta subzone, and that no terrigenous clastics reached this
basin. Ophiolitic detritus derived from the eastern Mirdita zone is
found in the Krasta subzone. Radiolaria and planktonic foraminifers
allow a generalized biostratigraphic correlation between the
sections. The palaeogeographic evolution of the zone is also
outlined.
Ueda, H., Kawamura, M. & Iwata, K. 1993.
Occurrence of the Paleocene radiolarian fossils from the
Idon'nappu Belt, central part of Hokkaido, Northern Japan. J.
geol. Soc. Japan, 99/7, 565-568. (in Japanese)
Vishnevskaya, V. 1993. Jurassic and Cretaceous
radiolarian biostratigraphy in Russia. In: Radiolaria of giant
and subgiant fields in Asia. Nazarov Memorial Volume.
(Blueford, J.R. & Murchey, B.L., Eds.), Micropaleontology,
special Publication vol. 6. Micropaleontology Press,
American Museum of Natural History, New York. pp. 175-
200.
Jurassic and Cretaceous radiolarian faunas from carbonate and
siliceous rock sequences of the Greater and Lesser Caucasus and
volcaniclastic and siliceous rock sections from the Koryak upland,
Kamchatka, Sakhalin and Sichote-Alin were investigated. As a result
of this biostratigraphical research, thirteen Tethyan radiolarian
assemblages and eleven Pacific Rim assemblages were
distinguished. The ages of the Tethyan radiolarian associations were
calibrated with ammonites, inoceramids and planktonic foraminifers.
These radiolarian assemblages can be considered as zonal for the
southern part of Eurasia. The radiolarian zonal scheme for the
volcanogenic-siliceous sequences from the far eastern part of
Russia (Pacific Rim) is less detailed because the rocks contain few
other microfauna or macrofossils. However, even in these rocks,
radiolanan assemblages can be used for division and correlation of
- 104 -
sections in order to study the Mesozoic stratigraphy of Pacific
folded belts. Radiolarians are particularly useful for reconstructions
of tectonically complex fragmentary sections. The discovery of wellpreserved,
abundant Jurassic and Cretaceous radiolarians in Russia
contributes to a reliable radiolarian biostratigraphy and increases
the opportunity to use these microfossils for global correlation.
Vishnevskaya, V.S., Merts, A.V. & Sedaeva,
K.M. 1993. Devonian radiolarians as possible generators of
oil. Dokl. Akad. Nauk SSSR, 333/6, 745-749.
Wang, R.J. 1993. Fossil Radiolaria from Kufeng formation
of Chaohu, Anhui. Acta palaeont. sinica, 32/4, 442-457.
Recently, diverse, abundant and well-preserved radiolarians
have been discovered from the chert of the Kufeng Formation
(Permian) in Chaohu, Anhui, among which fourteen genera, thirty-six
species (including two new species, Latentifistula triradiata and
Quadriremis flata), and one unnamed spheroidal form are recognized
and described. These radiolarians are composed of three basic type
microfossils, namely, the albaillellids, the spherical polycystine and
the stauraxon polycystine, with such dominant elements as
Pseudoalbaillella scalprata, P. longtanensis, P. sp. cf. P. Iongicornis,
Phaenicosphaera mammilla, P. sp. A, Ruzhencevispongus uralicus, R.
sp. A and R . sp. B. Based on the distribution pattern of the
radiolarians in the Kufeng Formation, two assemblage zones have
been proposed, namely the Pseudoalbaillella scalprata-P. sp. cf. P.
Iongicornis Assemblage in the lower part and the Phaenicosphaera
mammilla-Ruzhencevispongus uralicus Assemblage in the upper part.
Biostratigraphically, the first assemblage is correlated with the
Pseudoalbaillella scalprata-P. fusiformis Assemblage from the
Kufeng Formation at Longtan, Nanjing and the Pseudoalbaillella sp. C
Assemblage of Southwest Japan, while the second assemblage is
considered as equivalent to the Phaenicosphaera mammilla
Assemblage from the Kufeng Formation at longtan, Nanjing and
Hegleria mammifera (= Phaenicosphaera mammilla Sheng et Wang )
from West Texas, USA and correlated with the Ruzhencevispongus
uralicus Assemblage of the Southern Urals, USSR. Therefore, it is
considered that the two zones fall into early Maokouan and middle to
late Maokouan stage respectively, and correspond to early and
middle to late Guadalupian.
Wang, Y.J. 1993. Middle Ordovician radiolarians from the
Pingliang Formation of Gansu Province, China. In:
Radiolaria of giant and subgiant fields in Asia. Nazarov
Memorial Volume. (Blueford, J.R. & Murchey, B.L., Eds.),
Micropaleontology, special Publication vol. 6 .
Micropaleontology Press, American Museum of Natural
History, New York. pp. 98-114.
Middle Ordovician radiolarians were collected from the sandy
limestone of the lower member of the Pinglinng Formation of Gansu
province, China. The radiolarian fauna contains five genera and more
than ten species belonging to the spherical polycystines of the
family Inaniguttidae. These genera include Inanihella, Inanigutta,
Oriundogutta, Cessipylorum and Inanihigutta. Seven of these species
(Inanihella penrosei, Inanigutta complanta, Oriundogutta cornuta, O.
nazarovi, O. miscella miscella, Cessipylorum sp. cf. C. aperta and
Inanihigutta verrucula) are identical with those of the Middle
Ordovician Llandeilian-lower Caradocian of eastern Kazaichstan,
(Nazarov 1975; Nazarov and Popov 1980). The graptolite
Nemagraptus gracilis Zone (Syndyograptus subzone) and conodont
Pygodus anserrinus Zone associated with the radiolarian fauna are in
accordance with Llandeilian-lower Caradocian in age.
Welling, L.A. & Pisias, N.G. 1993. Seasonal trends
and preservation biases of polycystine radiolaria in the
northern California current system. Paleoceanography, 8/3,
351-372.
We analyzed a 2-year sediment trap record of 76 species of
Radiolaria from three locations across the northern California
Current System. Q-mode factor analysis identifies the fundamental
trends in the radiolarian data with a five-factor model that explains
86% of the trap data. The factor assemblages that emerge from this
analysis have temporal and spatial aspects that reflect fundamental
oceanographic features of the eastern North Pacific. The most
dominant process revealed by this analysis is related to the
seasonality of the Califomia Current. Two factors illustrate this: the
California Current factor, which has highest loadings during summer
and fall, and the Winter factor, which is most important in the winter
and spring. Together they account for 75% of the information in the
trap samples from the two moorings located in the coastal region
extending to ~300 km offshore. The oceanic environment sampled
by the mooring 650 km offshore is strongly influenced by
transitional waters and those from the Central and Subarctic Gyres.
Loadings of the three factors related to these oceanographic regions
show marked differences between years, which illustrates the