Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Chistochina mining district, Mount Hayes Quadrangle, Alaska, in 2005-2009
Dates
Publication Date
2010
Start Date
2005-07-01
End Date
2009-07-15
File Modification Date
2014-05-22 11:36:00
Citation
Athey, J.E., Freeman, L.K., Hults, C.P., Szumigala, D.J., Werdon, M.B., Denny, C.L., and International Tower Hill Mines Ltd., 2010, Major-oxide, minor-oxide, and trace-element geochemical data from rocks collected in the Chistochina mining district, Mount Hayes Quadrangle, Alaska, in 2005-2009: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, http://dx.doi.org/10.14509/20661.
Summary
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geological field survey, including mapping and sampling in the Chistochina mining district in the Mount Hayes A-2 and A-3 quadrangles, Alaska, from June 30 to July 15, 2009. The fieldwork provides basic information critical to building an understanding of Alaska's geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping. During 2009, 57 rock samples were collected for geochemical trace-element analysis, 107 rock samples were collected for whole rock (major- and minor-oxide and petrogenetically important trace elements) analyses, and 2 samples were collected for analysis of [...]
Summary
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geological field survey, including mapping and sampling in the Chistochina mining district in the Mount Hayes A-2 and A-3 quadrangles, Alaska, from June 30 to July 15, 2009. The fieldwork provides basic information critical to building an understanding of Alaska's geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping. During 2009, 57 rock samples were collected for geochemical trace-element analysis, 107 rock samples were collected for whole rock (major- and minor-oxide and petrogenetically important trace elements) analyses, and 2 samples were collected for analysis of non-carbonate carbon content. Additionally, 288 polished rock slabs were analyzed for whole rock and petrogenetically important trace elements. This report also contains geochemical trace-element analyses from the Mount Hayes A-2 Quadrangle, Alaska, for 359 rock samples collected by International Tower Hill Mines Ltd. (ITH) from July 2005 through August 2008 as part of the Chisna Project. These data were kindly donated to DGGS in 2009 to aid DGGS investigations.
The analyses in this report were acquired as part of a geologic mapping program, the purpose of which is to provide 1:50,000-scale geologic mapping of a portion of the Slate Creek-Slana River airborne geophysical surveys released by DGGS in 2009 (Burns et al., 2009). The geophysical survey (helicopter-based aeromagnetic and electromagnetic data) and geologic mapping are part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program, a special multi-year investment by the State of Alaska to expand Alaska's geologic and mineral resources knowledge base, catalyze future private-sector mineral exploration and development, and guide state resource development planning.