Log from the auriferous gravels in the Sierra Nevada foothills finally makes it. What a job! Don’t miss the video and specimen description.
Tag Archives: Early Tertiary auriferous gravels
New theory for the occurrence of gold nuggets in the “Early Tertiary Auriferous Gravels” of California
Gold Nuggets—Evidence of Past Climates and Former Landscapes by Odin Christensen presents a plausible explanation for the rich concentrations of coarse placer gold in California’s Early Tertiary auriferous rivers which largely drained a region of Nevada with a dearth of lode gold deposits.
Now posted in References. here
Gold Bearing Gravels of the Ancestral Yuba River, Sierra Nevada, California
This research document by Warren Yeend is now posted in the References section
The Upper Reaches of the Sierra Nevada Auriferous Gold Channels, California and Nevada
Document by Garside, et. al., 2005 is now posted
A Historical Review Of The Age Assignments Applied To The Chalk Bluff Fossil Plant Assemblage
A new unpublished document by Howard Schorn is now posted view here
Geology of the Ione Formation in the Ione Area
This document is now available in the References Section. It is Part B of the Guidebook for the Fieldtrip conducted for the 1995 Association of Engineering Geologists Annual Meeting in Sacramento CA.
Narrative Posted to Accompany GSA Presentation: Geologic Hazards in the Early Tertiary Sediments of the Sierra Nevada Foothills of California
This is the narrative or notes to accompany the Power Point slide show: Geologic Hazards in the Early Tertiary Sediments of the Sierra Nevada Foothills of California
Two Power Point slide shows of GSA Cordilleran Annual Meeting presentations now available for viewing in the documents section
The complete slide sets and slide notes for two oral presentations discussing the mineralogy and petrology of the auriferous gravels and their downstream equivalents are now posted in the documents section.
2013 GSA Cordilleran Conference presentations available for viewing in the documents section
Two oral and two poster session presentations made at the 2013 Cordilleran GSA Conference are available to view or download. These are papers that focus on the nature of the Early Tertiary fluvial sediments and their role in geotechnical issues in the Sierra foothills and adjacent Sacramento Valley areas.