The contact (red arrow) between Huckleberry Ridge Tuff ignimbrite members B and C is marked by a time break of probably years to a few decades.
Images
Explore our planet through photography and imagery, including climate change and water all the way back to the 1800s when the USGS was surveying the country by horse and buggy.
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Contact between Huckleberry Ridge Tuff ignimbrite members B and C
The contact (red arrow) between Huckleberry Ridge Tuff ignimbrite members B and C is marked by a time break of probably years to a few decades.
Sea Stars Underwater Offshore Northern California
Three sea stars on a rock, surrounded by a sandy seafloor littered with broken shells. Each sea star is approx. 10 - 15 cm (4-6 inches) across. Image acquired 4.5 km (3 miles) offshore Pigeon Point, southern San Mateo County, California at a depth of 52 meters.
Three sea stars on a rock, surrounded by a sandy seafloor littered with broken shells. Each sea star is approx. 10 - 15 cm (4-6 inches) across. Image acquired 4.5 km (3 miles) offshore Pigeon Point, southern San Mateo County, California at a depth of 52 meters.
California Coast Seafloor
Photograph showing the seafloor off the California coast. This photograph supports the California Seafloor Mapping Program (CSMP), which was initiated in 2007 by the California Ocean Protection Council.
Photograph showing the seafloor off the California coast. This photograph supports the California Seafloor Mapping Program (CSMP), which was initiated in 2007 by the California Ocean Protection Council.
California Coast Seafloor
This photograph is of the seafloor off the California coast and shows rock outcrop, encrusting sponge, cup corals, red sea star and a female kelp greenling. This photograph supports the California Seafloor Mapping Program (CSMP), which was initiated in 2007 by the California Ocean Protection Council.
This photograph is of the seafloor off the California coast and shows rock outcrop, encrusting sponge, cup corals, red sea star and a female kelp greenling. This photograph supports the California Seafloor Mapping Program (CSMP), which was initiated in 2007 by the California Ocean Protection Council.
Lake Chandler Acid Lake
Jeff Kargel (University of Arizona) Jim Crowley (USGS), Field trip to Australia to study acid lakes as Mars analogs.
Jeff Kargel (University of Arizona) Jim Crowley (USGS), Field trip to Australia to study acid lakes as Mars analogs.
Lake Tyrrel. Acid Lake
Jim Crowley (USGS) and Jeff Kargel (University of Arizona) studying acid lakes as mars analogs.
Jim Crowley (USGS) and Jeff Kargel (University of Arizona) studying acid lakes as mars analogs.
Lake Tyrrel. Acid Lake
Jim Crowley (USGS), Jeff Kargel (University of Arizona), Nathan Bridges (JPL). Studying Earth as a Mars analog.
Jim Crowley (USGS), Jeff Kargel (University of Arizona), Nathan Bridges (JPL). Studying Earth as a Mars analog.
Lake Tyrrel. Acid Lake
Jim Crowley (USGS), Nathan Bridges (JPL). Studying Earth as a Mars analog.
Jim Crowley (USGS), Nathan Bridges (JPL). Studying Earth as a Mars analog.
Lake Tyrrel. Acid Lake
Simon Hook (JPL), Jim Crowley (USGS), Nathan Bridges (JPL). Studying Earth as a Mars analog.
Simon Hook (JPL), Jim Crowley (USGS), Nathan Bridges (JPL). Studying Earth as a Mars analog.
Lake Tyrrel. Acid Lake
Jim Crowley (USGS), Jeff Kargel (University of Arizona. Studying Earth as a Mars analog.
Jim Crowley (USGS), Jeff Kargel (University of Arizona. Studying Earth as a Mars analog.
CWSC Office - Visitor Entrance
Close-up view of visitor entrance at Building 53; the location of USGS Colorado Water Science Center.
Close-up view of visitor entrance at Building 53; the location of USGS Colorado Water Science Center.
Lake Chandler. Acid Lake
Jim Crowley (USGS) measuring pH in the acid lake Chandler in Australia.
Jim Crowley (USGS) measuring pH in the acid lake Chandler in Australia.
Mountain Yellow-Legged Frog (Rana muscosa)
Endangered mountain yellow-legged frog (Rana muscosa).
Endangered mountain yellow-legged frog (Rana muscosa).
Mountain Yellow-Legged Frog (Rana Muscosa)
An endangered mountain yellow-legged frog (Rana muscosa).
An endangered mountain yellow-legged frog (Rana muscosa).
Tidewater Goby
Tidewater goby collected from Rodeo Lagoon in Golden Gate National Recreation Area, CA.
Tidewater goby collected from Rodeo Lagoon in Golden Gate National Recreation Area, CA.
Green Lake. Acid Lake
Jim Crowley (USGS), Nathan Bridges (JPL). Field trip to Australia to study acid lakes as Mars analogs.
Jim Crowley (USGS), Nathan Bridges (JPL). Field trip to Australia to study acid lakes as Mars analogs.
American Falls at Niagara Falls, NY
American Falls at Niagara Falls, NY
American Falls at Niagara Falls, NY
Karijini Circular Pool
Searching for life on Mars using Mars analogs in Australia. Banded Iron Formation Hamersley Basin.
Searching for life on Mars using Mars analogs in Australia. Banded Iron Formation Hamersley Basin.
Banded Iron Formation of Hamersley Range
Jim Crowley (USGS) searching for life on Mars using Mars analogs in Australia.
Jim Crowley (USGS) searching for life on Mars using Mars analogs in Australia.
Massachusetts Seafloor
This photograph is of the seafloor off the Massachusetts coast and shows sea stars, blood stars, blood drop tunicates, mussels and barnacles on cobbles and boulders covered with bubblegum algae and red filamentous algae.
This photograph is of the seafloor off the Massachusetts coast and shows sea stars, blood stars, blood drop tunicates, mussels and barnacles on cobbles and boulders covered with bubblegum algae and red filamentous algae.
Seastars on Algae Covered Cobbles and Boulders
Digital still photograph from Massachusetts Bay near Cohasset, MA, showing seastars (Asterias sp.), blood stars (Henricia sanguinolenta), blood drop tunicates (Dendrodoa carnea), mussels, and barnacles on cobbles and boulders covered with bubblegum algae and red filamentous algae. Water depth at this location is approximately 19.6 meters.
Digital still photograph from Massachusetts Bay near Cohasset, MA, showing seastars (Asterias sp.), blood stars (Henricia sanguinolenta), blood drop tunicates (Dendrodoa carnea), mussels, and barnacles on cobbles and boulders covered with bubblegum algae and red filamentous algae. Water depth at this location is approximately 19.6 meters.