Page 7 - BUKU AJAR PENGANTAR GEOLOGI
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Gunung Kelud ..................................................................................... 61
Gunung Merapi ................................................................................... 62
Gunung Agung .................................................................................... 64
Gunung Krakatau ................................................................................ 65
Gunung Maninjau ............................................................................... 66
Gunung Tambora ................................................................................ 66
Toba Supervolcano ............................................................................. 67
BAB VII PELAPUKAN TANAH ............................................................. 70
7.1 Proses Pelapukan Tanah ................................................................... 71
7.2 Faktor-Faktor Yang Mempengaruhi Pelapukan ............................... 74
7.3 Dampak pelapukan tanah .................................................................. 75
7.4 Usaha untuk mengurangi pelapukan tanah ....................................... 75
BAB VIII AIR TANAH ............................................................................. 76
8.1 Pengertian Air Tanah ........................................................................ 76
8.2 Pergerakan Air Tanah ....................................................................... 78
8.3 Permeabilitas dan Akuifer ................................................................ 78
Akuifer bebas atau akuifer tidak tertekan (Unconfined Aquifer) ....... 80
Akuifer tertekan (Confined Aquifer) .................................................. 81
Akuifer bocor (Leakage Aquifer) ....................................................... 81
Akuifer melayang (Perched Aquifer) .................................................. 82
BAB IX DEFORMASI BATUAN ............................................................. 84
9.1 Faktor-Faktor Yang Mempengaruhi Deformasi Batuan ................... 84
Tegangan (Stress) ................................................................................ 84
Suhu .................................................................................................... 86
Waktu .................................................................................................. 86
Komposisi ........................................................................................... 86
9.3 Struktur geologi akibat deformasi .................................................... 86
Lipatan (fold) ...................................................................................... 88
9.4 Macam2 lipatan ................................................................................ 90
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