Fosfat adalah batuan dengan kandung fosfor yang ekonomis. Biasanya kandungan fosfor dinyatakan sebagai bone phophate of lime (BPL) atau triphosphate of lime (TPL), atau berdasarkan kandungan P2O5.Mula jadi batuan fosfat dapat dibedakan menjadi tiga tipe yaitu fosfat batuan beku-apatit (igneous phosphate), sedimen (fosfat marin), dan guano.
Studying Misool Archipelago, which lies in the eastern pare of Indonesia, is very interesting because it has unique geology, especially in the Mesozoic time. The Mesozoic rocks are exposed moscly on the southern half of Misool and adjacent islets, eastern Indonesia. They include Triassic (Anisian co Norian), Jurassic (Toarcian to Tithonian), and Cretaceous strata. …
A seanse of historical perspective helps us to appreciate current challenges and to anticipate future ones.many modern environmental problems ,such as acid rain and graundwater pollution ,have come upon us very recently .others ,such as the hazards posed by earthquakes ,volcanoes ,and landslides ,have always been with us.
This practical step by step guide describes the key geological field techniques needed by today's exploration geologists involved in the search for metallic mineral deposits. The techniques described are fundamentals to the collection, storage and presentation of geological data and their use to locate ore. This book explains the various tasks which the exploration geologist is asked to perform…