Article Per Year (5 Year)
p-Index From 2021 - 2026
0.817
P-Index
This Author published in this journals
All Journal Buletin Sumber Daya Geologi
Tatik Handayani
Unknown Affiliation
Education Energy Engineering Environmental Science

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
GEOLOGI, MINERALOGI, DAN GEOKIMIA ENDAPAN BAUKSIT LATERIT DI DESA MUKTI JAYA, KABUPATEN SANGGAU, KALIMANTAN BARAT: GEOLOGY, MINERALOGICAL, AND GEOCHEMICAL LATERITE BAUXITE DEPOSITS IN MUKTI JAYA VILLAGE, SANGGAU DISTRICT, WEST KALIMANTAN Permatasari, Aisha; Sabtanto Joko Suprapto; Priatna; Tatik Handayani; Dedi Sunjaya
Buletin Sumber Daya Geologi Vol 19 No 2 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i2.477

Abstract

The geology of West Kalimantan, especially Sanggau Regency, contains a wide range of acidic to intermediate rocks of Lower Cretaceous age with stable tectonic conditions that meet the requirements for the formation of bauxite on an economical scale. The research area is in Mukti Jaya Village, Sanggau Regency, West Kalimantan Province. This research aims to determine the geology, mineralogical, and geochemical characteristics of bauxite deposits. The research methodology includes geological mapping, test pits, and laboratory analysis using XRF, A total of 390 bauxite samples were analyzed by XRF, 5 bauxite samples were analyzed by XRD, 4 bedrock samples and 2 bauxite samples were analyzed petrographically, and 2 bauxite concretion samples were analyzed mineragraphically. Based on the results of geological mapping, granodirite, quartz diorite and tonalite rocks were found. Bauxite is composed of the minerals quartz, gibbsite, kaolinite, hematite, biotite, boehmite, goethite, diaspor, muscovite, plagioclase, chlorite, and magnetite. From the results of XRF analysis content obtained 16.63% – 52.56% Al2O3; 14.5% – 66.69% TSiO2; 0.47% – 10.2% RSiO2; and 3.56% – 32.92% Fe2O3. The results of the correlation analysis showed a very strong and negatively correlated level of relationship between Al2O3 and TSiO2, as well as a very low level of relationship between Al2O3 and RSiO2. From the results of the regression analysis, it was found that TSiO2 had an effect on Al2O3 and RSiO2 had no effect on Al2O3.
KARAKTERISTIK ENDAPAN BIJIH BESI LATERIT PADA BLOK BARAT DAN BLOK TIMUR PT SILO, KABUPATEN KOTABARU, KALIMANTAN SELATAN BERDASARKAN ANALISIS GEOKIMIA DAN MINERALOGI : CHARACTERISTICS OF LATERITE IRON ORE DEPOSIT IN WEST BLOCK AND EAST BLOCK OF PT SILO, KOTABARU DISTRICT, SOUTH KALIMANTAN BASED ON GEOCHEMICAL AND MINERALOGICAL ANALYSIS Putri Ramadhani, Ayumi Hana; Andi Cahyadi; Tatik Handayani; Suwahyadi
Buletin Sumber Daya Geologi Vol 18 No 3 (2023): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v18i3.425

Abstract

This research was conducted to identify the characteristics of laterite deposits in the western and eastern blocks of Sebuku Island, Kotabaru Regency, South Kalimantan using field observation methods, and laboratory analysis including titration, XRF, XRD and petrography analysis. The characteristics of the western block laterite deposits are 10 meters until 15 meters deep. The red limonite zone has Fe content of 51.25% with a mineral composition of hematite, magnetite, goethite, ilmenite, spinel. The yellow limonite zone has Fe content of 50.1% with a mineral composition of goethite, hematite, gibsite, ilmenite. The saprolite zone has Fe content of 16.2%, the mineral composition is hematite, chrysotile, goethite, garnet, diopside. The characteristics of the eastern block laterite deposits are that they have a depth of 6 meters until 7.5 meters. The red limonite zone has Fe content of 47.38% with a mineral composition of hematite, goethite, ilmenite, spinel. The yellow limonite zone has Fe content of 38.70% with a mineral composition of goethite, hematite, chromite, gibbsite, spinel. The saprolite zone has Fe content of 15.08%, the mineral composition is hematite, goethite, diopside, fayalite. The bedrock of the research area is in the form of periodotite, namely dunite and harzburgite which have been serpentinized. The mineral composition of the bedrock is olivine, pyroxene, opaque minerals and several secondary minerals, namely serpentine and talc. The west block bedrock has Fe content of around 7.73 % until 8.03% while the east block bedrock has Fe content of around 6.59 % until 7.49%.
GEOLOGI, MINERALOGI, DAN GEOKIMIA ENDAPAN BAUKSIT LATERIT DI DESA MUKTI JAYA, KABUPATEN SANGGAU, KALIMANTAN BARAT: GEOLOGY, MINERALOGICAL, AND GEOCHEMICAL LATERITE BAUXITE DEPOSITS IN MUKTI JAYA VILLAGE, SANGGAU DISTRICT, WEST KALIMANTAN Permatasari, Aisha; Sabtanto Joko Suprapto; Priatna; Tatik Handayani; Dedi Sunjaya
Buletin Sumber Daya Geologi Vol 19 No 2 (2024): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v19i2.477

Abstract

The geology of West Kalimantan, especially Sanggau Regency, contains a wide range of acidic to intermediate rocks of Lower Cretaceous age with stable tectonic conditions that meet the requirements for the formation of bauxite on an economical scale. The research area is in Mukti Jaya Village, Sanggau Regency, West Kalimantan Province. This research aims to determine the geology, mineralogical, and geochemical characteristics of bauxite deposits. The research methodology includes geological mapping, test pits, and laboratory analysis using XRF, A total of 390 bauxite samples were analyzed by XRF, 5 bauxite samples were analyzed by XRD, 4 bedrock samples and 2 bauxite samples were analyzed petrographically, and 2 bauxite concretion samples were analyzed mineragraphically. Based on the results of geological mapping, granodirite, quartz diorite and tonalite rocks were found. Bauxite is composed of the minerals quartz, gibbsite, kaolinite, hematite, biotite, boehmite, goethite, diaspor, muscovite, plagioclase, chlorite, and magnetite. From the results of XRF analysis content obtained 16.63% – 52.56% Al2O3; 14.5% – 66.69% TSiO2; 0.47% – 10.2% RSiO2; and 3.56% – 32.92% Fe2O3. The results of the correlation analysis showed a very strong and negatively correlated level of relationship between Al2O3 and TSiO2, as well as a very low level of relationship between Al2O3 and RSiO2. From the results of the regression analysis, it was found that TSiO2 had an effect on Al2O3 and RSiO2 had no effect on Al2O3.
HUBUNGAN KONDISI GEOLOGI TERHADAP SEBARAN KADAR CU-AU BERDASARKAN DATA INTI PENGEBORAN PROSPEK TUMPANGPITU, DAERAH SUMBERAGUNG, BANYUWANGI, JAWA TIMUR: RELATIONSHIP BETWEEN GEOLOGICAL CONDITIONS AND Cu-Au GRADE DISTRIBUTION BASED ON DRILL CORE DATA FROM TUMPANGPITU PROSPECT, SUMBERAGUNG AREA, BANYUWANGI, EAST JAVA Riyanto, Putri Rindu Bunga Kasih; Dadan Wildan; Achmad Djumarma Wirakusumah; Tatik Handayani; Riansyah Widisaputra
Buletin Sumber Daya Geologi Vol 20 No 3 (2025): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v20i3.549

Abstract

The research area is located in Pesanggaran, Banyuwangi, East Java, situated in the central part of the Sunda-Banda magmatic arc, with potential for mineralization. The research aims to identify geological conditions, alteration zones, mineralization, ore deposit types, and their relationship with the distribution of Cu-Au grades. The results of the study can be used as a reference for further exploration. The research is based on core drilling data from six locations, ASD analysis, X-RD, petrography, ore microscopy, and statistical analysis using boxplots. The lithology of the research area consists of six lithological units: sandstone, first-phase dacite, diorite, quartz diorite, second-phase dacite, and phreatomagmatic breccia. There are five alteration zones, the overprint zone (alunite-chlorite-mica-smectite±pyrophyllite±biotite±k-feldspar), the advanced argillic zone (pyrophyllite-mica-dickite-diaspore), the argillic zone (kaolinite-mica±illite±diaspore), the phyllic zone (sericite/mica-smectite±chlorite±calcite), and the propylitic zone (chlorite-mica-smectite±epidote±calcite). The observed mineralization includes pyrite, chalcocite, enargite, and chalcopyrite, occurring in disseminated, massive, and vein forms, present at depths <150 m with Au grades ranging from 0.1 ppm to >1 ppm and Cu grades from <0.1% to 0.5%. The presence of pyrite, chalcopyrite, bornite, and covellite in stockwork is found at depths >150 m with Au grades ranging from 0.5 ppm to >1 ppm and Cu grades from 0.3% to >1%. The Cu-Au grade distribution zone is controlled by quartz diorite intrusions and is associated with argillic and phyllic alteration types. The related mineralization includes bornite-chalcopyrite-pyrite and enargite-chalcocite-pyrite assemblages, with pyrite showing a weak association. The ore deposit type is a porphyry Cu-Au system overprinted by high-sulfidation epithermal mineralization.
Co-Authors Achmad Djumarma Wirakusumah Andi Cahyadi Dadan Wildan Dedi Sunjaya Permatasari, Aisha Priatna Putri Ramadhani, Ayumi Hana Riansyah Widisaputra Riyanto, Putri Rindu Bunga Kasih Sabtanto Joko Suprapto Suwahyadi