Saddle

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities As; Sb
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale LG
Quadrangle map, 1:63,360-scale B-6
Latitude 65.406
Longitude -149.546
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Saddle occurrence is located on a north-northwest trending ridge of the Sawtooth Mountains, 1.6 miles north-northwest from the peak VAMB 4494 'Tooth'; NE1/4, and about 0.2 mile east-northeast from the center of section 26, T. 7 N., R. 10 W., of the Fairbanks Meridian. The Saddle occurrence location is accurate within 300 meters.

Geologic setting

Geologic description

The Saddle occurrence lies near the halfway point of known mineralization on the gold mineralized trend Tooth Trend (J.R. Woodman, Senior Natural Resource Manager, Doyon Limited, written communication, 2014). The Peak and Huron prospects are located on the Tooth trend, which coincides with projection of southwest-northeast trending thrust fault contact, in Devonian sedimentary rocks (Wilson and others, 1998).
Sixty-four soil samples were collected in 1994 by ASA-Montague over a 1/4 mile square area. Three widely spaced soil samples yielded assay results greater than 0.5 part per million (ppm) gold with some anomalous arsenic and antimony. More than 80 rock grab samples were also collected in the soil grid area. (ASA-Montague, 1994).
Saddle surface sample gold mineralization is hosted in quartz monozonite,adjacent hornfels and silicified Devonian sedimentary rocks (ASA, Inc., 1992).
Geologic map unit (, )
Mineral deposit model Intrusive-related gold.
Age of mineralization Cretaceous or later based on age of the quartz monzonite (Wilson and others, 1998).
Alteration of deposit Silicification (ASA, Inc., 1992).

Production and reserves

Workings or exploration
Sixty-four soil samples were collected at Saddle in 1994 by ASA-Montague over a 1/4 mile square area. Three widely spaced soil samples yielded assay results greater than 0.5 part per million (ppm) gold with some anomalous arsenic and antimony. More than 80 rock grab samples were also collected in the soil grid area (ASA-Montague, 1994).
Saddle surface sample gold mineralization is hosted in quartz monozonite, adjacent hornfels and silicified Devonian sedimentary rocks (ASA, Inc., 1992).
Indication of production None
Reserve estimates None.
Production notes None.

Additional comments

Suggestions to add this record and references were provided as a written communication by J.R. Woodman, Senior Natural Resource Manager, Doyon Limited, 2014.

References

References

ASA-Montague, 1994, Annual Report Reconnaissance Program Doyon Option Lands, Volume 1 (Doyon Report 95-14a, Report held by Doyon, Limited, Fairbanks, Alaska).
Reporters V.C.Zinno (Alaska Earth Sciences, Inc.)
Last report date 12/24/2014