Records of the Geological Survey of India, Volume 129, Parts 4-5The Survey, 1994 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
From inside the book
Results 1-3 of 42
Page 29
... sulphides include pyrite , chalcopyrite and rarely pyrrhotite . Gold occurs as discrete grains ( upto 500 microns ) in native form and is also as- sociated with sulphides . Chloritisation , silicification , epidotisation ...
... sulphides include pyrite , chalcopyrite and rarely pyrrhotite . Gold occurs as discrete grains ( upto 500 microns ) in native form and is also as- sociated with sulphides . Chloritisation , silicification , epidotisation ...
Page 79
... sulphides and are found to be auriferous . Numerous discon- tinuous bands of quartzite are seen exposed in the area . The quartzite is usually micaceous and oc- casionally fuchsite- bearing . Current bedding and ripple marks are ...
... sulphides and are found to be auriferous . Numerous discon- tinuous bands of quartzite are seen exposed in the area . The quartzite is usually micaceous and oc- casionally fuchsite- bearing . Current bedding and ripple marks are ...
Page 92
... sulphides or its oc- currence in the cavities left out by the sulphides supports the hypothesis that gold is carried in so- lution . Foliated wall rock inclusions as slivers in the quartz veins imply that the quartz veins post date the ...
... sulphides or its oc- currence in the cavities left out by the sulphides supports the hypothesis that gold is carried in so- lution . Foliated wall rock inclusions as slivers in the quartz veins imply that the quartz veins post date the ...
Contents
Resource Survey for dimensional stones of Mylliem Granite East Khasi Hills District Meghalaya | 4 |
ASSAM PROJECT 6 GEOLOGICAL MAPPING | 12 |
An Overview | 1 |
Copyright | |
7 other sections not shown
Other editions - View all
Common terms and phrases
amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH anomaly Arunachal Pradesh Assam assessment auriferous banded iron formation beach bedrock BIF bands biotite block boreholes carried charnockite chert clay comprising delineated deposits depth dips dolerite drilling dykes east eastern emplaced ENE-WSW excavated exposed field season folds foliation Formation gabbro geochemical GEOLOGICAL MAP geophysical geotechnical investigations gneiss grade grained granite granite gneiss granulite gravity grey Group hill hornblende indicated intrusives joints KARNATAKA KERALA kimberlite laterite limestone lineament located mafic magnetic Meghalaya metabasalt migmatites mineral mineralised zones NE-SW NW-SE occur overburden pegmatite phyllite pink power house PROJECT pyrite quartz quartz veins quartzite regional ridge river rock types samples sand sandstone scale schist belt schistose sediments shale shear zone Shillong slope soil Specialised Thematic Mapping sq km strike length structural studies sulphides surface surveys TAMIL NADU thick traverses trenching trending tunnel ultramafic upto valley volcanics weathered width