Signal Hill has long been a communications point on the Southern California landscape. In an earlier era, Native Americans signaled their brethren with fire and smoke, from Santa Catalina Island to the foothills of the Coastal Range bordering what is now L.A.

Today the signals are electronic, connecting us--at the click of a mouse--to vast, new worldwide networks.

Tuesday, February 16, 2010

Signal Hill a Salt Dome?

Bob Hickman, a geologist, former Southern Californian, and owner of the Gallery of the American West in Sacramento, says that Signal Hill is a salt dome, and that has very significant implication for petroleum extraction.

But my limited research emphasizes seismic activity and sandstone layers, without mentioning salt domes. See: Long Beach Geology and Salt Dome

What about it. Is Signal Hill a salt dome? And what may be its significance?

-- RCH

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