Coal-rich Tertiary sediments of the ombilin II coal field,west sumatra occur within a structurally complex foult bounded graben formed as a resoult of subduction of the pacific plate beneath sumatra.tectonic activity associated with foult movement appears to have influenced the caracter of the coal seams.grouth foulting my be responsible for areas o…
Adalah sangat penting bahwa para ahli geologi, geofisika, dan ahli teknik produksi mempunyai pengetahuan yang luas mengenai type-type batuan dan karakteristik batuan. Dalam teknik adalah sangat penting akan adanya standarisasi mengenai nomenklatur dan cara memberi type batuan dan sifat-sifatnya. Dalam hal ini nomenklatur harus ada keseragaman pember…
In the Java sea Tertiary sediments cover a cratonized basement of pretertiary age. Tentative standard sections of the Tertiery sequence employ used stratigraphic nomenclature. Regional lithologic correlation provides a consistenst picture of alternating carbonate and clastic series covered by a clay series. This corelations is substantiated by paleo…
Over the past several decades the philosophy of exploration for oil and gas has pro• gressively changed from drilling on surface seepages to the concept of structural traps, com• plemented later by considerations of sedimentology in relation to the development of reser• voirs, which led to the concept of stratigraphic traps. …
There are no documented records of when or how mankind first discovered that a certain
"black rock" would burn. However, it is known that coal was employed as a fuel in China circa
1100 BC and that Welsh Bronze Age cultures had used coal for funeral pyres. There are many other instances where …