Sebagaimana diketahui bahwa daerah subanjeriji dan sekitarnya, merupakan daerah cekungan minyak bumi dan batubara,dicirikan dengan daerah yang ditutupi oleh batuan sedimen tersier dan kwarter
As Pointed out by Boyle (1974) in his comprehensivecoverage of element associations of mineral deposits, rarely does a single element concentrate in the Earth's crust• to form a mineral deposit. Generally mineral deposits consist of a suite of elements which have been concentrated because of certain intrinsic chemical properties which depend esse…
Perlite is a glassy yolcanic rock which will upon Tap id and controlled heating, expand or ''pop" into a frothy aterial of low bulk density -valued as a lightweight aggregate. Occurrences and commercial deposits of perli te are iknown throughout the world as well~exposed flows and domes of Tertiary and Quaternary age like most of the -volcanic …
Published multi-element stream-sediment exploration geochemical data from new brunswick are used to illustrate some pitfalls of correlation and regression. Large matrics of correlation coefficients. are easly mass-produced.These coefficient are susceptible to suprious values, clustering of samples and the effect of other variables on the relation un…
Fundamental questions of metallogenetic investigations are first donsidered. The difference betwen factors and indicators in metallogenetic analysis is discuss.Metallogenetic factors are geological phenomena which condition the formation of deposits.They are its cause.
An om a l .i es of s u l f u r d i ox i de and other gases have been defined, by direct measurement, around various sulfide bodies. These readings were made (1) in soil gas and (2) in the atmos• phere, from bo…
Manganese oxide coatings on gravels from 255 sites on tributary streams in the genesee river watershed were analyzed for Mn, Fe, Zn, Cd, Co, Ni, Pb and Cu. The result were compared with data on bedrock geology, surficial geology and land use, using factor analysis and stepwise multiple regression. All metals except Pb show strong positive correlatio…
The Calaveritas quadrangle is in the western foothills of the Sierra Nevada, east of the Mother Lode gold belt. Most of the quadrangle is underlain by a strongly de• formed bedrock complex that is locally covered by small deposits of undeformed stream gravels and rhyolite tuff.
The bedrock complex consists of met…
geochemistry indicated several copper values of grea't'er than 1000 ppm. where the eastern cr o ss l Lne of the soil grid is still open to the ea s t . Follow-up geological work in Ligi was based on the above date focussed attention on Ligi Stream and its tributaries. were started on February 12 and lasted to Harch 26, 1974.…