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DGGS releases data for emerging Tok area

The Alaska Division of Geological & Geophysical Surveys April 8 issued a report from the 2014 Tok electromagnetic and magnetic geophysical survey, which covers roughly 2,500 square kilometers (965 square miles) centered roughly 56 kilometers (35 miles) west-southwest of Tok.

The west and northeast portions of the survey area contain numerous known copper, gold, and gold-silver-copper-lead-zinc prospects, some with drill-identified precious and base-metal resources documented in the Alaska Resource Data Files.

Notable prospects at or near the survey area include: the Tetlin copper-gold project; Tushtena gold project; and Delta polymetallic project.

DGGS says the absence of known mineral prospects in the remainder of the survey area is likely related to the lack of public data.

By increasing the geologic understanding of the area survey, the state agency aims to catalyze new private-sector exploration with the ultimate goal of discovering deposits worthy of development and production.

The Tok survey report, Geophysical Report 2015-2, is available for free download at, and includes final processed data in point, line, image, map, and grid formats.

Supporting documentation also is provided in multiple formats.

Future releases from the survey will include data interpretations, reports, and flight videos.

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Shane Lasley, Publisher

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Over his more than 16 years of covering mining and mineral exploration, Shane has become renowned for his ability to report on the sector in a way that is technically sound enough to inform industry insiders while being easy to understand by a wider audience.


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