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Layer: Geology (ID: 54)

Name: Geology

Display Field: SOURCE

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This map depicts the relative liquefaction susceptibility of sediments in San Luis Obispo County. The purpose of this map is to provide a comparison of relative liquefaction susceptibility for regional planning studies in San Luis Obispo County. A common type of ground failure associated with moderate and large earthquakes is liquefaction in which water-saturated fine-grained cohesionless sediments lose strength and may fail during strong ground shaking. Liquefaction susceptibility depends on the age and type of material, relative density of the material, and the depth to first (shallowest) water. Generally, younger sediments (especially latest Holocene that are less than 1,000 years old) such as loose fill, river channel, and flood plain deposits are more likely to liquefy than older Pleistocene terrace deposits. This map database depicts the relative liquefaction susceptibility for San Luis Obispo County. --- Use limitations --- While every effort has been made to ensure that this data is accurate and reliable, the County of San Luis Obispo does not assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. The County of San Luis Obispo makes no warranty, express or implied, that this data is accurate and reliable, nor does the fact of distribution constitute such a warranty. Users must assume responsibility to determine the appropriate use of these data. The County of San Luis Obispo provides this data to you for your exclusive use. This data may not be given away, sold or otherwise distributed to any third party without express written permission from the County of San Luis Obispo.

Copyright Text: San Luis Obispo County Department of Planning & Building Geographic Technology Section

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