 | | Journal (article/letter/editorial) | | environment, Barton Peninsula, King George Island, Antarctica DEBBIE C. ARMSTRONG* British Antarctic Survey...Volcanic-hosted advanced argillie alteration on Barton Peninsula comprises an assemblage of chalcedonic silica...silica, alunite family minerals, pyrophyllite, pyrite, native sulphur, zunyite and rutile, characteristic...F)IsC1,are reported at this locality, and in Antarctica, for the first time. The WNWstriking, 1 km-long...alteration, acid sulphate-type epithermal system, Antarctica. Introduction VOLCANIC- and plutonic-related |  | | Journal (article/letter/editorial) | | Geochemistry of soils of King George Island, South Shetland Islands, West Antarctica: Implications for pedogenesis...fractions of soils on the Barton Peninsula, King George Island, West Antarctica have been forming during...that chemical weathering of bedrocks on the Barton Peninsula seems insignificant and that the soils are...element (REE) distribution patterns of the Barton Peninsula soils are slightly different from those of...suggest that volcanic ashes blown from Deception Island were the major eolian contributor, followed by |  | | Journal (article/letter/editorial) | | prep.), but The "quartz-pyrite"rocks of the South Shetland their broad distributionis shownin Figure 1...surroundingJurassic(?) lavasis (Ferguson, 1921; Haxvkes, 1961; Barton, 1964) intimately associatedwith the genesisof...mineralizedbrec- posits. cia in pre-Tertiary faults (Barton, 1963). During the 1975-76 summer seasonthese occurMineralogy...most of the pyrite-bearing rocks of the South Shetland Islands are not of this type. Rather than veins...the quartz-pyrite rocks on George Island. Inset shows the positionof the South ShetlandIslands. Km • |  | | Report (issue) | | volcanic-hosted argillic alteration (Barton Peninsula, Antarctica). Association: Alunite, natroalunite...Washington, USA); pyrophyllite, pyrite, sulfur, zunyite, rutile, chalcedonic silica (Barton Peninsula, Antarctica)...Gurghui Mountains, Romania. On Barton Peninsula, King George Island, Antarctica. Name: In honor of Dr. A.E |  | | Journal (article/letter/editorial) | | coworkers18) and the diamonds from Premier mine in South Africa, which are particularly beautiful, have an...P-type diamonds from De Beers Pool mines, Kimberley, South Africa.13 More recently, as part of a programme...more fully the evolution of the Kaapvaal craton in South Africa, Re–Os systematics on single E-type sulphide...Kimberley (in the middle) and Koffiefontein (in the south), have shown two distinct ages of E-type diamond...Centre, De Beers Consolidated Mines, Southdale, South Africa Fe–Ni–Cu sulphides are the most common syngenetic |  | | Journal (article/letter/editorial) | | alteration and geochemistry of alunite in the western Izu Peninsula, Shizuoka Prefecture 安藤 康行 (Yasuyuki ANDO)*...(Sadao TSUTSUMI)* Acid alteration in the western Izu Peninsula, Shizuoka Prefecture, is distributed widely...alteration is characterized by an assemblage of pyrophyllite, diaspore and alunite. The alunite has cores...fluid. Keywords: Acid alteration, Alunite, Izu Peninsula I. は じ め に 伊豆半島の西部，達磨山〜長九郎山にかけての一帯に は，鮮新世〜更新世の火成活動に伴う酸性変質帯が断続的... 康行・堤 貞夫 Fig. 1. Geologic map of the western Izu Peninsula showing geographical distribution of the |  | | Journal (article/letter/editorial) | | Magmatic-Hydrothermal Activity in the Shuteen Area, South Mongolia* Bayaraa Batkhishig,1,† Tsuchiya Noriyoshi...area is located in the Gurvansaikhan island arc terrane of South Mongolia. It contains a large domain...or beneath the Shuteen lithocap. Introduction South Mongolia hosts a number of Paleozoic porphyry copper...107°34'–107°48'E) is located about 450 km south-southeast of Ulaanbaatar in South Mongolia. The area contains the...MAGMATIC-HYDROTHERMAL ACTIVITY IN THE SHUTEEN AREA, SOUTH MONGOLIA 107o 34’30’’ 44o 00’30’’ 107o 48’00’’ |
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