GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA
This study is dealing with geology and characteristics of mineralogy of the skarn Big Gossan, Ertsberg district, Tembagapura, Papua. Lithologies that make up the Big Gossan consists of Quartz Sandstone, Hornfels KKel, Hornfels Kkeh, Eksoskarn Tw, Diorite Intrusion Big Gossan. Dominant geological asp...
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| Format: | Thesis |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2013
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| _version_ | 1797033020915449856 |
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| author | , HERMINA HALUK, S.T , Dr.rer.nat. Arifudin Idrus, ST., MT, |
| author_facet | , HERMINA HALUK, S.T , Dr.rer.nat. Arifudin Idrus, ST., MT, |
| author_sort | , HERMINA HALUK, S.T |
| collection | UGM |
| description | This study is dealing with geology and characteristics of mineralogy of the
skarn Big Gossan, Ertsberg district, Tembagapura, Papua. Lithologies that make
up the Big Gossan consists of Quartz Sandstone, Hornfels KKel, Hornfels Kkeh,
Eksoskarn Tw, Diorite Intrusion Big Gossan. Dominant geological aspects that
control the formation of the Big Gossan skarn precipitation is in the form of
Eksoskarn Tw lithology and geological structure in the form of a sinistral slip
fault called bedding plane fault with the direction N280 ° -290 ° E. Bedding plane
fault is also a lithological contact between the rock of Waripi Formation, Ekmai
Formation and diorite intrusion.
Mapping, altered mineral identification (using petrographic and X-Ray
Diffraction analyses), and also metallic mineral identification (using
mineragraphy analyses), the Big Gossan skarn is mineralogically characterized
by prograde alteration comprising garnet (andradite) and clino-pyroxene
(diopside), and retrograde alteration composed of epidote, chlorite, calcite,
anhydrite and sericite. Ore mineralization is typified by chalcopyrite, pyrite,
sphalerite, galena, magnetite, hematite, marcasite, covelite and chalcosite, formed
at retrograde stage. Base on metallic mineral dominated mineralization in Big
Gossan grouped into Calcic-Cooper Skarn.
Ore textures observed in mineragraphy observation is the replacement
texture, infilling texture and exsolution texture. Based on observations of ore
textures and mineral formation temperature approaches according to Morrison
(1997) the deposition of mineral paragenesis Big Gossan skarn grouped into two
stages, the stages of prograde and retrograde. Big Gossan skarn Paragenesis
deposition begins with the formation of prograde minerals such as garnet,
clinopyroxen, quartz, pyrite and chalcopyrite at high temperatures then deposited
succesive retrograde minerals such as epidote, chlorite, calcite, anhydrite,
chalcopyrite, pyrite, galena, sphalerite, marcasite, hematite, covelite and
chalcosite at lower temperatures. |
| first_indexed | 2024-03-13T22:47:40Z |
| format | Thesis |
| id | oai:generic.eprints.org:118789 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T22:47:40Z |
| publishDate | 2013 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:1187892016-03-04T08:38:34Z https://repository.ugm.ac.id/118789/ GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA , HERMINA HALUK, S.T , Dr.rer.nat. Arifudin Idrus, ST., MT, ETD This study is dealing with geology and characteristics of mineralogy of the skarn Big Gossan, Ertsberg district, Tembagapura, Papua. Lithologies that make up the Big Gossan consists of Quartz Sandstone, Hornfels KKel, Hornfels Kkeh, Eksoskarn Tw, Diorite Intrusion Big Gossan. Dominant geological aspects that control the formation of the Big Gossan skarn precipitation is in the form of Eksoskarn Tw lithology and geological structure in the form of a sinistral slip fault called bedding plane fault with the direction N280 ° -290 ° E. Bedding plane fault is also a lithological contact between the rock of Waripi Formation, Ekmai Formation and diorite intrusion. Mapping, altered mineral identification (using petrographic and X-Ray Diffraction analyses), and also metallic mineral identification (using mineragraphy analyses), the Big Gossan skarn is mineralogically characterized by prograde alteration comprising garnet (andradite) and clino-pyroxene (diopside), and retrograde alteration composed of epidote, chlorite, calcite, anhydrite and sericite. Ore mineralization is typified by chalcopyrite, pyrite, sphalerite, galena, magnetite, hematite, marcasite, covelite and chalcosite, formed at retrograde stage. Base on metallic mineral dominated mineralization in Big Gossan grouped into Calcic-Cooper Skarn. Ore textures observed in mineragraphy observation is the replacement texture, infilling texture and exsolution texture. Based on observations of ore textures and mineral formation temperature approaches according to Morrison (1997) the deposition of mineral paragenesis Big Gossan skarn grouped into two stages, the stages of prograde and retrograde. Big Gossan skarn Paragenesis deposition begins with the formation of prograde minerals such as garnet, clinopyroxen, quartz, pyrite and chalcopyrite at high temperatures then deposited succesive retrograde minerals such as epidote, chlorite, calcite, anhydrite, chalcopyrite, pyrite, galena, sphalerite, marcasite, hematite, covelite and chalcosite at lower temperatures. [Yogyakarta] : Universitas Gadjah Mada 2013 Thesis NonPeerReviewed , HERMINA HALUK, S.T and , Dr.rer.nat. Arifudin Idrus, ST., MT, (2013) GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA. UNSPECIFIED thesis, UNSPECIFIED. http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=58765 |
| spellingShingle | ETD , HERMINA HALUK, S.T , Dr.rer.nat. Arifudin Idrus, ST., MT, GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA |
| title | GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN
BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA |
| title_full | GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN
BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA |
| title_fullStr | GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN
BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA |
| title_full_unstemmed | GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN
BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA |
| title_short | GEOLOGI DAN KARAKTERISTIK MINERALOGI ENDAPAN SKARN
BIG GOSSAN, ERTSBERG, TEMBAGAPURA, PAPUA |
| title_sort | geologi dan karakteristik mineralogi endapan skarn big gossan ertsberg tembagapura papua |
| topic | ETD |
| work_keys_str_mv | AT herminahalukst geologidankarakteristikmineralogiendapanskarnbiggossanertsbergtembagapurapapua AT drrernatarifudinidrusstmt geologidankarakteristikmineralogiendapanskarnbiggossanertsbergtembagapurapapua |