Y. Ohta

发表

Aseismic slow slip on an inland active fault triggered by a nearby shallow event, the 2008 Iwate‐Miyagi Nairiku earthquake (Mw6.8)

T. Sagiya, N. Umino, T. Matsushima, 2009 .

Single-zircon Pb-evaporation and 40Ar/39Ar dating of the metamorphic and granitic rocks in north-west Spitsbergen

Michael Lange, A. Larionov, C. Lepvrier, 2002 .

Grenvillian and Caledonian tectono-magmatic activity in northeasternmost Svalbard

A. Larionov, D. Gee, Å. Johansson, 2004, Geological Society, London, Memoirs.

Caledonian granites of western and central Nordaustlandet, northeast Svalbard

A. Larionov, D. Gee, Å. Johansson, 2002 .

Grenvillian basement and a major unconformity within the Caledonides of Nordaustlandet, Svalbard

A. Larionov, D. Gee, Å. Johansson, 1995 .

Rb-Sr whole rock and U-Pb zircon datings of the granitic-gabbroic rocks from the Skålfjellet Subgroup, southwest Spitsbergen

J. Peucat, A. Sirotkin, M. Bjornerud, 1996 .

Age and nature of protoliths in the Caledonian blueschist-eclogite complex of western Spitsbergen: a combined approach using UPb, SmNd and REE whole-rock systems

J. Peucat, J. Bernard-Griffiths, Y. Ohta, 1993 .

An Early Proterozoic U‐Pb zircon age from an Eskolabreen Formation gneiss in southern Ny Friesland, Spitsbergen

A. Larionov, A. Sirotkin, Y. Balashov, 1993 .

UPb, Sr and Nd evidence for grenvillian and latest proterozoic tectonothermal activity in the spitsbergen caledonides, arctic ocean

D. Gee, J. Peucat, J. Bernard-Griffiths, 1989 .

Caledonian and precambrian history in Svalbard: a review, and an implication of escape tectonics

Y. Ohta, 1994 .

Geology of the Nepal Himalayas

S. Hashimoto, Y. Ohta, 秋葉力, 1973 .

On the the origin of the Yermak Plateau north of Svalbard, Arctic Ocean

John K. Hall, Y. Kristoffersen, Y. Ohta, 2020, Norwegian Journal of Geology.

Did major fractures in continental crust control orientation of the Knipovich Ridge-Lena Trough segment of the plate margin?

M. Max, Y. Ohta, 1988 .

Svartfjella, Eidembukta, and Daudmannsodden lineament: Tertiary orogen‐parallel motion in the crystalline hinterland of Spitsbergen's fold‐thrust belt

A. Braathen, H. Maher, S. Bergh, 1997 .

Phase petrology of eclogites and related rocks from the Motalafjella high-pressure metamorphic complex in Spitsbergen (Arctic Ocean) and its significance

S. Banno, T. Hirajima, Y. Hiroi, 1988 .

Tectonothermal chronology within a blueschist-eclogite complex, west-central Spitsbergen, Svalbard: Evidence from 40Ar39Ar and RbSr mineral ages

R. D. Dallmeyer, J. Peucat, T. Hirajima, 1990 .

Granulites and garnet–cordierite gneisses from Dronning Maud Land, Antarctica

Y. Ohta, K. Bucher-Nurminen, 1993 .

Tertiary fold-and-thrust belt of Spitsbergen, Svalbard

H. Maher, A. Andresen, S. Bergh, 1993 .

Recent understanding of the Svalbard basement in the light of new radiometric age determinations

Y. Ohta, 1992 .

Microfossils in metasediments from Prins Karls Forland, western Svalbard

A. Knoll, Y. Ohta, 1988 .

Microfossils in metasediments from Prins Karls Forland, western Svalbard.

A. Knoll, Y. Ohta, 1988, Polar research.

Ordovician conodonts from the Bulltinden Formation, Motalafjella, central-western Spitsbergen

H. A. Nakrem, H. Armstrong, Y. Ohta, 1986 .

Additional evidence of pre-Silurian high-pressure metamorphic rocks in Spitsbergen

T. Hirajima, Y. Hiroi, Y. Ohta, 1983 .

Tertiary tectonics of Svalbard: extended abstracts from symposium held in Oslo 26 and 27 April 1988

A. Andresen, W. Dallmann, Y. Ohta, 1988 .

Reconnaissance of glaciogenic bathymetry in the fjords and on the shelves of Spitsbergen

Y. Ohta, 1987 .

Grenvillian U-Pb zircon ages of quartz porphyry and rhyolite clasts in a metaconglomerate at Vimsodden, southwestern Spitsbergen

A. Sirotkin, Y. Ohta, A. Tebenkov, 1995 .

Geochemistry of Precambrian basic igneous rocks between St. Jonsfjorden and Isfjorden, central western Spitsbergen, Svalbard

Y. Ohta, 1985 .

Devonian–Carboniferous slivers within the basement area of north-east Oscar II Land, Spitsbergen

C. Lepvrier, Y. Ohta, F. Thiedig, 2000 .

Northern continuation of Caledonian high‐pressure metamorphic rocks in central‐western Spitsbergen

C. Lepvrier, Y. Ohta, A. Tebenkov, 1995 .

Geological map of Svalbard, 1:100, 000 sheet B9G Isfjorden : Spitsbergen

Norsk Polarinstitutt, Y. Ohta, 1991 .

Surface magnetic anomaly study on the eastern part of the Forlandsundet Graben

Y. Ohta, A. Krasil'ščikov, A. P. Kubanskij, 1995 .

Grenvillian and Caledonian evolution of eastern Svalbard – a tale of two orogenies

A. Larionov, D. Gee, Å. Johansson, 2005 .

Tectonothermal evolution of contrasting metamorphic complexes in northwest Spitsbergen (Biskayerhalvøya): Evidence from 40Ar/39Ar and Rb-Sr mineral ages

R. D. Dallmeyer, J. Peucat, Y. Ohta, 1990 .

Caledonian terranes in Svalbard

R. D. Dallmeyer, J. Peucat, Y. Ohta, 1989 .

PRECAMBRIAN HISTORY OF SVALBARD IN THE LIGHT OF NEW RADIOMETRIC AGE DETERMINATIONS

Y. Ohta, Hecla Hoek, 2010 .

Single-grain zircon dating of the metamorphic and granitic rocks from the Biscayarhalvøya-Holtedahlfonna zone, north-west Spitsbergen

A. Larionov, Y. Ohta, A. Tebenkov, 2003 .

Geochemistry of the late Proterozoic Kapp Hansteen igneous rocks of Nordaustlandet, Svalbard

Y. Ohta, 1985 .

Geological map of Svalbard 1:500000. Sheet 4G, Nordaustlandet

Y. Ohta, O. Lauritzen, 1984 .

Hecla Hoek rocks in central and western Nordaustlandet

Y. Ohta, 1982 .

Newtontoppen granitoid rocks, their and Rb-Sr age

Y. Ohta, Ju. A. Balašov, 2007 .

Caledanian Metamorphism in Svalbard, with Same Remarks an the Basement *

Y. Ohta, 1978 .

Caledonian high-pressure metamorphism in central western Spitsbergen

T. Hirajima, Y. Hiroi, Y. Ohta, 1986 .

Lawsonite and pumpellyite from the Vestgötabreen Formation in Spitsbergen

T. Hirajima, Y. Hiroi, Y. Ohta, 1984 .

Grenvillian single‐grain zircon Pb age of a granitic rock from the southern island of Hesteskoholmen, Liefdefjorden, northwestern Spitsbergen, Svalbard

Y. Ohta, A. Larionov, 1998 .

Caledonian Metamorphism in Svalbard, with Some Remarks on the Basement

Y. Ohta, 1978 .

Newtontoppen granitoid rocks, their geology, chemistry and Rb-Sr age

A. Sirotkin, Y. Ohta, A. Tebenkov, 1996 .

U-Pb, Sr and Nd evidence for Grenvillian tectonothermal activity in the Spitsbergen Caledonides

J. Peucat, J. Bernard-Griffiths, Y. Ohta, 1989 .

Contribution to the geology of north western Spitsbergen

Y. Ohta, A. Hjelle, 1974 .

Paleozoic metamorphism across the boundary between the Clements Markham fold belt and the Pearya terrane in northern Ellesmere Island, Canadian Arctic Archipelago

E. M. Klaper, Y. Ohta, 1993 .

Morpho-Tectonic Studies Around Svalbard and the Northernmost Atlantic

Y. Ohta, 1982 .

The Downtonian and Devonian vertebrates of Spitsbergen. XV†. New Heterostracans from the Lower Devonian Red Bay Group, northern Spitsbergen

Y. Ohta, Robert R. Ilyes, Jonny Guddingsmo, 1995 .

Geology of Gjelsvikfjella and western Mühlig-Hofmannfjella, Dronning Maud Land, east Antarctica

K. Shiraishi, Y. Ohta, B. Tørudbakken, 1990 .

On the formation of augen structure

Y. Ohta, 1969 .

Plagioclase porphyroblasts from an amphibolite paleozome

Y. Ohta, 1972 .

Discovery of Lepidolina kumaensis KANMERA from the Ohtani Conglomerate in the Ise Region, Fukui Prefecture

Y. Ohta, Rikizo Yamaguchi, 1965 .

General petrology and geochemistry

E. Ghent, M. Z. Stout, B. Jamtveit, 1985 .

Co-existence of plagioclases of different compositions in some plutonic and metamorphic rocks

Y. Ohta, M. Hunahashi, T. Tsuchiya, 1968 .

Additional Rb‐Sr and single‐grain zircon datings of Caledonian granitoid rocks from Albert I Land, northwest Spitsbergen

A. Larionov, J. Peucat, A. Sirotkin, 1996 .

Additional Rb-Sr and single-grain zircon datings of Caledonian granitoid rocks from Albert I Land , northwest

A. Larionov, J. Peucat, Y. Ohta, 2022 .

The Snow Crystals of "Double Gohei Twin Types"

K. Kikuchi, H. Uyeda, T. Endoh, 1991 .

Nature environment map 1:100, 000 Gjeksvikfjella and western Mühlig-Hofmannfjella : Dronning Maud Land, Antarctica

Norsk Polarinstitutt, Y. Ohta, 1993 .