Monday, 9 January 2012

Sedimentary rocks

Rocks are formed from loose material deposition process (fragment) results reshuffle / weathering of other rock transported from the place of origin by water, ice or wind, which then undergo a process diagenesa / pembatuan (compaction and adhesion). The types of sedimentary rocks are:
                                    Based on the type of substance carriers
Stone sediman Aeolis: rock the process of transport by wind
Stone sediman alluvial: rock the transport process and the formation by running water. Example:delta at the mouth of the river
Stone sediman yesterday: rock the transport process and is formed by sea water. Example: sand-dune on the beach
Stone sediman glacial: rock the transport process and the formation by glaciers or ice which flows

                        Based on origin
Sedimentary rock clastic / mechanical = yg deposited rocks from the rock rombakan origin, eg, conglomerate, breccia, sandstone, shale, marl, mudstone
an organic sedimentary rock = rock derived from the sediment organic material (animal & plant), eg limestone, coal, stone peat, diatomite 
Sedimentary rock = chemical sedimentary rocks due to chemical processes, for example: evaporit, travertin, anhydrite, halite, gypsum stone
Sedimentary rock deposits of pyroclastic rocks = volcano eruption of ash / dust, for example: tuff