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The study area is located in Pengaron Sub-district, Banjar, South Kalimantan. Geographically, the area is located at UTM 50 S, 9635000 – 9645000 M and 288000 – 298000 M. The area is 100 km2 (10 km x 10 km) with 1:12.500 map scale. <br /> <br /> <br /> <br /> <...
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Format: | Final Project |
Language: | Indonesia |
Online Access: | https://digilib.itb.ac.id/gdl/view/18173 |
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Institution: | Institut Teknologi Bandung |
Language: | Indonesia |
Summary: | The study area is located in Pengaron Sub-district, Banjar, South Kalimantan. Geographically, the area is located at UTM 50 S, 9635000 – 9645000 M and 288000 – 298000 M. The area is 100 km2 (10 km x 10 km) with 1:12.500 map scale. <br />
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Morphological features are observed using contour map, Shuttle Radar Topographic Mission (SRTM) image, and direct field observation. The research area can be divided to four geomorphological units, consist of Anticlinal Hills, Volcanic Hills, Fold Hills and Alluvial Plain Units respectively. <br />
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Stratigraphy of the research area is divided into six unofficial lithological units, ordered from old to young: Conglomerate Units, Andesite Units, Sandstone Units, Claystone Units, Limestone Units and Alluvial Deposit Units respectively. Geological structures of the research area are Panyandaran Normal Fault, and Pengaron Normal Fault. <br />
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Geological history of the research area started at Early Paleocene. At Early Paleocene rifting occured, normal faults and basins developed, and Panyandaran Normal Fault was created in research area. Lower Sandstone unit deposited uncomformably over the Andesite and Conglomerate Unit in transition environment At Late Paleocene. At Early Eocene, Pengaron Normal Fault developed as the results of continuous rifting process. Claystone Unit deposited in neritic environment at Late Eocene,. At Early Oligocene, Limestone Unit deposited conformably over Claystone Unit. Tectonic regimes changed from extension to compression due to reversals of tectonic stresses,. From Plio-Pleistocene to Recent, erosion occur which made the study area shaped as it presents these days. <br />
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Cleat analyses are conducted at 3 stations, TAJ SL-1, TAJ SL-2 and TAJ SL-3. Cleat geometry data measured to analyze the orientation, intensity, and aperture. Analyses result showed the influence of geological structure on three stations, which on TAJ-SL2 shows the biggest impact. Cleats formed while the Limestone Unit was deposited, based on orientation data and its relations with regional geological structure analysis. |
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