NOTE ON THE GEOLOGY OF THE PROTEROZOIC RAYNER COMPLEX AT MT. VECHERNYAYA NEAR MOLODEZHNAYA STATION, ENDERBY LAND
スポンサーリンク
概要
- 論文の詳細を見る
Geological reconnaissance of the Proterozoic Rayner Complex was carried out at Mt. Vechernyaya in western Enderby Land during the 29th Japanese Antarctic Research Expedition (JARE-29,1987-1988) from February 14th to 17th, 1988. Mt. Vechernyaya (272m above sea level), situated on the coast of Alasheyev Bight, is about 10km east of Molodezhnaya Station.The basement around Mt. Vechernyaya consists mainly of granulite-facies, locally migmatitic, well-layered gneisses and charnockitic gneiss. The well-layered gneisses include garnet-biotite gneiss, clinopyroxene gneiss, hornblende gneiss and quartzo-feldspathic gneiss. Gneissosity trends E-W to ESE-WNW, and dips steeply to the north. Lineations, due to the preferred orientation of the mafic minerals, dip 5 to 20°east. Typical mineral assemblages of the garnet-biotite gneiss are Bi-Gt, Bi-Gt-Sil, Bi-Gt-Sil-Crd and Bi-Gt-Opx-Mt. The above cordierite-bearing assemblage is the third report from the Molodezhnaya area. Six well-layered gneisses were sampled for geochronological studies. The charnockitic gneiss, which is exposed in an elongate body, has mineral lineations but no marked compositional layering. Its intrusive relation with the well-layered gneisses suggests an igneous origin. This rock consists mainly of quartz, K-feldspar and plagioclase with minor orthopyroxene, clinopyroxene, hornblende and biotite.Granite and pegmatite dikes, a few centimeters to 1m thick, intrude the metamorphic rocks and charnockitic gneiss throughout the area.
- 国立極地研究所の論文
著者
-
Grew Edward
Department Of Geological Sciences University Of Maine
-
Grew E.
Department Of Geological Science University Of Maine
-
Grew Edwqrd
メーン大学
-
Grew E.
メーン大
-
Grew Edward
Department Of Geological Science University Of Maine
-
ASAMI Masao
Department of Geological Sciences, College of Liberal Arts, Okayama, University
-
MAKIMOTO Hiroshi
Geological Survey of Japan
-
Asami M
Department Of Earth Sciences Faculty Of Science Okayama University
-
Asami Masao
Department Of Geological Sciences College Of Liberal Arts Okayama University
-
Asami Masao
Department of Earth Sciences, Faculty of Science, Okayama University
関連論文
- 西エンダビーランド,アムンゼン湾周辺地学調査隊報告1998-1999(JARE-40)
- エンダービーランド地域のベチェルナヤ山及びリーセル・ラルセン山地域地学調査:沿岸地学調査報告1988(JARE-29)
- セールロンダーネ山地地学調査報告1988(JARE-29)
- P-170 東南極エンダービーランド Howard Hills 産超苦鉄質岩と周辺岩石の Sr・Nd 同位体組成
- P-126 東南極ナピア岩体ハワードヒルズ産アルミナス片麻岩の超高温変成作用
- High-grade metamorphic rocks from Skallevikshalsen in the Lutzow-Holm Complex, East Antarctica: metamorphic conditions and possibility of partial melting
- High-grade metamorphic rocks from Christmas Point in the Napier Complex, East Antarctica
- Ultrahigh-temperature metamorphic rocks from Howard Hills in the Napier Complex, East Antarctica
- Lamproite dykes in the Napier Complex at Tonagh Island, Enderby Land, East Antarctica
- Boron and Beryllium Minerals in Granulite-facies Pegmatites and Implications of Beryllium Pegmatites for the Origin and Evolution of the Archean Napier Complex of East Antarctica
- Granulite-facies beryllium pegmatites in the Napier Complex in Khmara and Amundsen Bays, western Enderby Land, East Antarctica
- RELICT SAPPHIRINE IN PYROPIC GARNET FROM THE EASTERN S∅R RONDANE MOUNTAINS, ANTARCTICA
- CONTRASTING MINERAL ASSOCIATIONS BETWEEN TWO WOLLASTONITE-BEARING CALC-SILICATE GNEISSES, EASTERN SOR RONDANE MOUNTAINS, ANTARCTICA
- A STAUROLITE-BEARING CORUNDUM-GARNET GNEISS FROM THE EASTERN SOR RONDANE MOUNTAINS, ANTARCTICA
- METAMORPHIC CONDITIONS OF ULTRAMAFIC LENSES FROM THE EASTERN SOR RONDANE MOUNTAINS, EAST ANTARCTICA
- A staurolite-bearing corundum-garnet gneiss from the eastern Soer Rondane Mountains, Antarctica
- Metamorphic conditions of ultramafic lenses from the eastern Soer Rondane Mountains, East Antarctica
- NOTE ON THE GEOLOGY OF THE PROTEROZOIC RAYNER COMPLEX AT MT. VECHERNYAYA NEAR MOLODEZHNAYA STATION, ENDERBY LAND
- SOME GEOLOGICAL OBSERVATIONS ON THE ARCHEAN NAPIER COMPLEX AT MT. RIISER-LARSEN, AMUNDSEN BAY, ENDERBY LAND
- PRELIMINARY PETROLOGICAL STUDIES OF THE METAMORPHIC ROCKS OF THE EASTERN SOR RONDANE MOUNTAINS
- GEOLOGY OF THE EASTERN SOR RONDANE MOUNTAINS, EAST ANTARCTICA
- ARRESTED CHARNOCKITE FORMATION IN SRI LANKA : FIELD AND PETROGRAPHICAL EVIDENCE FOR LOW-PRESSURE CONDITIONS
- Arrested charnockite formation in Sri Lanka: Field and petrographical evidence for low-pressure conditions
- CHIME ages of xenotime, monazite and zircon from beryllium pegmatites in the Napier Complex, Khmara Bay, Enderby Land, East Antarctica
- CHIME ages for granulites from the Napier Complex, East Antarctica
- Rb-Sr AND K-Ar WHOLE ROCK AGES OF THE PLUTONIC BODIES FROM THE SOR RONDANE MOUNTAINS, EAST ANTARCTICA
- Rb-Sr and K-Ar whole rock ages of the plutonic bodies from the Soer Rondane Mountains, East Antarctica
- GRANULITE-FACIES METAMORPHIC CONDITIONS IN THE EASTERN SOR RONDANE MOUNTAINS, EAST ANTARCTICA
- Petrochemical character of the syenitic rocks from the Yamato Mountains, East Antarctica
- METADIKES IN THE EASTERN S∅R RONDANE MOUNTAINS, EAST ANTARCTICA
- KYANITE FROM THE WESTERN PART OF THE SOR RONDANE MOUNTAINS, EAST ANTARCTICA
- Th, U AND Pb ANALYTICAL DATA AND CHIME DATING OF MONAZITES FROM METAMORPHIC ROCKS OF THE RAYNER, LUTZOW-HOLM, YAMATO-BELGICA AND S∅R RONDANE COMPLEXES, EAST ANTARCTICA
- MONAZITE AGES BY THE CHEMICAL Th-U-TOTAL Pb ISOCHRON METHOD FOR PELITIC GNEISSES FROM THE EASTERN S∅R RONDANE MOUNTAINS, EAST ANTARCTICA
- Retrograde metamorphism in the Yamato Mountains, East Antarctica
- Mineral parageneses of basic to intermediate metamorphic rocks in the Yamato Mountains, East Antarctica
- THE FIRST OCCURRENCE OF HOGBOMITE IN ANTARCTICA : SINNAN ROCKS AND CAPE RYUGU
- Plutonic and metamorphic rocks of Massif-A in the Yanato Mountains, East Antarctica
- Amphibolite-facies mineral assemblages in the Belgica Mountains, East Antarctica
- P-223 東南極ナピア岩体に産するlamproites(28. 岩石鉱物一般,ポスターセッション,一般発表)
- P-188 東南極ナピア岩体クリスマスポイントに産する高度変成岩類の岩石記載(26. 変成岩とテクトニクス,ポスターセッション,一般発表)