Research area administratively included into the Purwakarta District, Purwakarta Regencies,West J... more Research area administratively included into the Purwakarta District, Purwakarta Regencies,West Java, Indonesia. Geographically, the research area is located at coordinates 107°21' 30” E to 107° 26' 30” E and 6° 27' 00” S to 6° 32' 00” S. Physiographically, research area is included into the Bogor Zone, with the plains and hilly areas that comprises almost all the sedimentary rocks that have been deformed and has undergone folding and faulting. In the geomorphology aspect,research area is divided into several units, namely alluvial plains Geomorphology unit, volcanic plains Geomorphology unit, ramp structural hills geomorphological unit, steep structural hills geomorphological unit, steep volcanic hills geomorphological unit, steep intrusion hills geomorphological unit. In the lithostratigraphy aspect, research area is divided into several rock units, based on the oldest to the youngest sequence of rocks, sandstone unit (Middle Miocene), claystone unit (Late Miocene – Pliocene), Tuff Unit (Pleistocene) Intrusion rock unit (Pleistocene), alluvium deposits (Holocene). In the remote sensing aspect, though observation of SRTM DEM data, river lineament patterns, and field data, may assist in characterizing the existence of geological structures developed in the research area, which is fault, Batulayang reverse slip fault. The geological history began in Middle Miocene (N12-N13), at that time sedimentary process occurred which result sandstone unit, at Late Miocene - Pliocene sedimentary process occurred which result claystone unit. At Pliocene – Pleistocene there was a tectonic event that result Narogtog anticline,Batulayang Anticline, and Batulayang reverse slip fault. Along with the erosion process, volcanism in the Pleistocene increased resulting in the intrusion rock unit (Qid) in a weak zone formed by the Batulayang reverse slip fault. At the same time sedimentary process occurred which result tuff unit.And then at Holocene river material deposited above tuff unit until now. The potential of geological resources used by residents in the research area are excavated materials in the C category, blocks of stone that comes from the mountain intrusion, and mudstone quarry. Whereas, the disaster potential that may occur in the research area are landslides.
Di bawah ini ringkasan beberapa jenis klasifikasi cekungan: 1. Yang sederhana berdasarkan hubunga... more Di bawah ini ringkasan beberapa jenis klasifikasi cekungan: 1. Yang sederhana berdasarkan hubungan antara morfologi/bentuk cekungan dan kapan sedimen mengisinya:-Syn-depositional: sedimentasi bersamaan dengan subsidence, jenis facies sedimen pengisi cekungan akan dipengaruhi oleh perubahan akomodasi, pola penyebaran facies dapat diprediksi; di bagian pinggiran facies dangkal, di tengah cekungan facies yang lebih dalam.-Post-depositional: cekungan terbentuk lebih belakangan dibandingkan dengan sedimentasi yang lebih dulu terjadi. Pola penyebaran facies sedimen-sedimen yang lebih tua tidak dikontrol oleh morfologi cekungan yang terbentuk belakangan tapi mengikuti cekungan yang terbentuk lebih awal-Pre-depositional: cekungan terbentuk lebih dulu, lalu subsidence terjadi dengan cepat karena tektonik sehingga lokasi depocentre dalam banget, baru kemudian sedimen masuk ke cekungan setelah tektonik berhenti. 2. Berdasarkan jenis litosfer dan gaya struktur (structural style) Kingston et al. (1983):-Continental interior sag: posisi di dalam kontinen, sag artinya subsidence karena loading, tanpa tektonik-Continental interior fracture: posisi di dalam kontinen, fracture artinya rekah (patahan ekstensional)-Passive continental margin, margin sarg: di pinggir kontinen, passive margin-Oceanic sag: di laut (kerak samudra), sag-Basins related to subduction: berkaitan dengan subduksi-Basins related to collision: berkaitan dengan tabrakan-Strike slip basin: berkaitan dengan sesar mendatar
Research area administratively included into the Purwakarta District, Purwakarta Regencies,West J... more Research area administratively included into the Purwakarta District, Purwakarta Regencies,West Java, Indonesia. Geographically, the research area is located at coordinates 107°21' 30” E to 107° 26' 30” E and 6° 27' 00” S to 6° 32' 00” S. Physiographically, research area is included into the Bogor Zone, with the plains and hilly areas that comprises almost all the sedimentary rocks that have been deformed and has undergone folding and faulting. In the geomorphology aspect,research area is divided into several units, namely alluvial plains Geomorphology unit, volcanic plains Geomorphology unit, ramp structural hills geomorphological unit, steep structural hills geomorphological unit, steep volcanic hills geomorphological unit, steep intrusion hills geomorphological unit. In the lithostratigraphy aspect, research area is divided into several rock units, based on the oldest to the youngest sequence of rocks, sandstone unit (Middle Miocene), claystone unit (Late Miocene – Pliocene), Tuff Unit (Pleistocene) Intrusion rock unit (Pleistocene), alluvium deposits (Holocene). In the remote sensing aspect, though observation of SRTM DEM data, river lineament patterns, and field data, may assist in characterizing the existence of geological structures developed in the research area, which is fault, Batulayang reverse slip fault. The geological history began in Middle Miocene (N12-N13), at that time sedimentary process occurred which result sandstone unit, at Late Miocene - Pliocene sedimentary process occurred which result claystone unit. At Pliocene – Pleistocene there was a tectonic event that result Narogtog anticline,Batulayang Anticline, and Batulayang reverse slip fault. Along with the erosion process, volcanism in the Pleistocene increased resulting in the intrusion rock unit (Qid) in a weak zone formed by the Batulayang reverse slip fault. At the same time sedimentary process occurred which result tuff unit.And then at Holocene river material deposited above tuff unit until now. The potential of geological resources used by residents in the research area are excavated materials in the C category, blocks of stone that comes from the mountain intrusion, and mudstone quarry. Whereas, the disaster potential that may occur in the research area are landslides.
Di bawah ini ringkasan beberapa jenis klasifikasi cekungan: 1. Yang sederhana berdasarkan hubunga... more Di bawah ini ringkasan beberapa jenis klasifikasi cekungan: 1. Yang sederhana berdasarkan hubungan antara morfologi/bentuk cekungan dan kapan sedimen mengisinya:-Syn-depositional: sedimentasi bersamaan dengan subsidence, jenis facies sedimen pengisi cekungan akan dipengaruhi oleh perubahan akomodasi, pola penyebaran facies dapat diprediksi; di bagian pinggiran facies dangkal, di tengah cekungan facies yang lebih dalam.-Post-depositional: cekungan terbentuk lebih belakangan dibandingkan dengan sedimentasi yang lebih dulu terjadi. Pola penyebaran facies sedimen-sedimen yang lebih tua tidak dikontrol oleh morfologi cekungan yang terbentuk belakangan tapi mengikuti cekungan yang terbentuk lebih awal-Pre-depositional: cekungan terbentuk lebih dulu, lalu subsidence terjadi dengan cepat karena tektonik sehingga lokasi depocentre dalam banget, baru kemudian sedimen masuk ke cekungan setelah tektonik berhenti. 2. Berdasarkan jenis litosfer dan gaya struktur (structural style) Kingston et al. (1983):-Continental interior sag: posisi di dalam kontinen, sag artinya subsidence karena loading, tanpa tektonik-Continental interior fracture: posisi di dalam kontinen, fracture artinya rekah (patahan ekstensional)-Passive continental margin, margin sarg: di pinggir kontinen, passive margin-Oceanic sag: di laut (kerak samudra), sag-Basins related to subduction: berkaitan dengan subduksi-Basins related to collision: berkaitan dengan tabrakan-Strike slip basin: berkaitan dengan sesar mendatar
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Papers by Fathan Tri A
In the geomorphology aspect,research area is divided into several units, namely alluvial plains Geomorphology unit, volcanic plains Geomorphology unit, ramp structural hills geomorphological unit, steep structural hills geomorphological unit, steep volcanic hills geomorphological unit, steep intrusion hills geomorphological unit.
In the lithostratigraphy aspect, research area is divided into several rock units, based on the oldest to the youngest sequence of rocks, sandstone unit (Middle Miocene), claystone unit (Late Miocene – Pliocene), Tuff Unit (Pleistocene) Intrusion rock unit (Pleistocene), alluvium deposits (Holocene).
In the remote sensing aspect, though observation of SRTM DEM data, river lineament patterns, and field data, may assist in characterizing the existence of geological structures developed in the research area, which is fault, Batulayang reverse slip fault.
The geological history began in Middle Miocene (N12-N13), at that time sedimentary process occurred which result sandstone unit, at Late Miocene - Pliocene sedimentary process occurred which result claystone unit. At Pliocene – Pleistocene there was a tectonic event that result Narogtog anticline,Batulayang Anticline, and Batulayang reverse slip fault. Along with the erosion process, volcanism in the Pleistocene increased resulting in the intrusion rock unit (Qid) in a weak zone formed by the Batulayang reverse slip fault. At the same time sedimentary process occurred which result tuff unit.And then at Holocene river material deposited above tuff unit until now.
The potential of geological resources used by residents in the research area are excavated materials in the C category, blocks of stone that comes from the mountain intrusion, and mudstone quarry. Whereas, the disaster potential that may occur in the research area are landslides.
Keywords:Geological Mapping,Purwakarta District, Purwakarta Regencies.
In the geomorphology aspect,research area is divided into several units, namely alluvial plains Geomorphology unit, volcanic plains Geomorphology unit, ramp structural hills geomorphological unit, steep structural hills geomorphological unit, steep volcanic hills geomorphological unit, steep intrusion hills geomorphological unit.
In the lithostratigraphy aspect, research area is divided into several rock units, based on the oldest to the youngest sequence of rocks, sandstone unit (Middle Miocene), claystone unit (Late Miocene – Pliocene), Tuff Unit (Pleistocene) Intrusion rock unit (Pleistocene), alluvium deposits (Holocene).
In the remote sensing aspect, though observation of SRTM DEM data, river lineament patterns, and field data, may assist in characterizing the existence of geological structures developed in the research area, which is fault, Batulayang reverse slip fault.
The geological history began in Middle Miocene (N12-N13), at that time sedimentary process occurred which result sandstone unit, at Late Miocene - Pliocene sedimentary process occurred which result claystone unit. At Pliocene – Pleistocene there was a tectonic event that result Narogtog anticline,Batulayang Anticline, and Batulayang reverse slip fault. Along with the erosion process, volcanism in the Pleistocene increased resulting in the intrusion rock unit (Qid) in a weak zone formed by the Batulayang reverse slip fault. At the same time sedimentary process occurred which result tuff unit.And then at Holocene river material deposited above tuff unit until now.
The potential of geological resources used by residents in the research area are excavated materials in the C category, blocks of stone that comes from the mountain intrusion, and mudstone quarry. Whereas, the disaster potential that may occur in the research area are landslides.
Keywords:Geological Mapping,Purwakarta District, Purwakarta Regencies.