Seafloor Morphology: Purisima Formation Sidescan Sonar

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Seafloor Morphology between Año Nuevo and Santa Cruz, California

Purisima Formation Sidescan Sonar

Side-scan sonar record of Purisma Formation outcrops collected 1.5 km south of Point Santa Cruz. Mottled appearance of outcrop is due to surficialboulder-cobble lag overlying bedrock unit. Light portions of record consist of medium- to fine- grained sand. Each horizontal line represents 10 meter spacing from the middle of the record. Water depth is 39 to 40 meters.

Area A Image

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Page Last Modified: 1999; layout updated 18May10 (lzt)