Mount Diablo Field Trip  March 18, 2001

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Photos by David Donovan and Karen Wilde
Web page and photo scanning and editing by R.L. Hanna

Field trip participants:

Linda Adams
Candice Alcott
Judy Deliramich
David Donovan
Shauna Edson
Bruce Kenyon

James Kirkham
Millaray Lavin Martinez
Claire Mittelstaedt
Karen Wilde
Lydona Walker
Ruth Hanna








Franciscan radiolarian red-bedded chert

Learning the Brunton Geologic Compass
(Strike and Dip)


A great chert fold


Cherty shale... anyone got their Brunton compass?


This is some great chert!


Close-up of the chert beds


Multicolored chert


Chert outcrop


The Brunton: Strike and Dip


Another great chert fold


Greenstone with white quartz and calcite deposits


The view to North Peak from the Fire Interpretive Trail


Cuestas and the view to the Great Valley
Devil's Pulpit chert outcrop in the right foreground


View back up to the summit
Devil's Pulpit chert is easily discernible


Vertical sandstone hogbacks

 

Eroded vertical sandstones


Rock City "Wind Caves"


Our group inspects the "Wind Caves"


A closer look at a "Wind Cave"


On top of the sandstone


Milli and Santiago on the top


Summit Visitor Center wall








 

Field trip participants:
Linda Adams
Candice Alcott
Judy Deliramich
David Donovan
Shauna Edson
Bruce Kenyon
James Kirkham
Millaray Lavin Martinez
Claire Mittelstaedt
Karen Wilde
Lydona Walker
Ruth Hanna

Photos by David Donovan and Karen Wilde

Web page and photo scanning and editing by R.L. Hanna