A cell complex may be considered to be made up of closed cells with geometric coordinates at the vertices .A graph connecting the "centres" of the cells is the duel structure to a geometric model .many researchers consider that only.
If one part of this chain is not realized ,no coal deposit will form.formation is ,due to the difference of vegetation ,in palaeobotanical and biofacial terms ,leading to the specific types mentioned above.formation is not only depened on the growth of vegetation ,but that is more important ,the palaeoclimatological base must be represented.
Many common terms in metamorphic petrology vary in their usage and meaning between countries ,and there is a range of specialized rock names that have been applied locally .the international union of geological sciences (IUGS)subcommision on the systematics of metamorphic rocks (SCMR)has aimed to resolve this position and to present systematic termi…
Whatever one's views,it cannot be daubted that there is a pressing need to respond to the social,economic and intellectual challenges of global environmental change .much of the debate on these issues has been crystallised around the activities of the IPCC (intergovernmental panel on climate change) .the IPCC process was set up in 1988 ,a joint init…
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.
The Years From 1800 to 1900 witnesed the development industries in europe and america. At the bbeginning of this sam the steamboad and railroad were not yet in operation, but by the periode other groat advances.
Hasil pemetaan batuan terminalisasi dan ubahannya di daerah wolo desa dan sekitarnya menunjukan ,luas sebaran zona mineralisasinya diperkirakan 6X3km2/ kuranglebih 1.800 hektar dengan kualitas logam yang ditemukan berdasarkan hasil analisis kimia di urat kuarsa , kadar logam Cu sebesar 9,85% dan Au 20 ppb sementara hasil uji kimia batuan tufa terub…
Pemeriksaan ini dilakukan untuk mengetahui kondisi Geologi setempat dan faktor penyebab terjadinya gerakan tanah, sehingga dapat dilakukan usaha dan cara-cara penanggulangannya terutama pada saat menghadapi musm hujan.
Pemeriksaan ini dilakukan untuk mengetahui kondisi Geologi setempat dan faktor penyebab terjadinya gerakan tanah, sehingga dapat dilakukan usaha dan cara-cara penanggulangannya terutama pada saat menghadapi musm hujan.
Pemeriksaan ini dilakukan untuk mengetahui kondisi Geologi setempat dan faktor penyebab terjadinya gerakan tanah, sehingga dapat dilakukan usaha dan cara-cara penanggulangannya terutama pada saat menghadapi musm hujan.