Show UniqueIdentification

Id 177
Identification Type Lithofacies
Name Tephra - Mount Saint Helens Y
Distinguishing Features
Description Lithofacies defined as the directly deposited ejecta from the 'Series Y' eruption of Mt. Saint Helens, Washinton state, ca. 3750 cal. yr BP.

Distinguished indisputably by elemental chemistry. Identification is frequently inferred by bracketing ages, geographic distribution, and general appearance.
Tags volcanic-glass
isotropic
conchoidal
vesicular
Cascades
External Resources
Imposters
Images
Unique Identification: Tephra - Mount Saint Helens Y
Site name: Wallowa
Light type: Plane-Polarized Light
Magnification: 400.0
Submitted by: Mark Shapley
Notes: none
Image Tags: none
Unique Identification: Tephra - Mount Saint Helens Y
Site name: Wallowa
Light type: Cross-Polarized Light
Magnification: 400.0
Submitted by: Mark Shapley
Notes: none
Image Tags: none
Unique Identification: Tephra - Mount Saint Helens Y
Site name: Wallowa
Light type: Plane-Polarized Light
Magnification: 400.0
Submitted by: Mark Shapley
Notes: none
Image Tags: none
Unique Identification: Tephra - Mount Saint Helens Y
Site name: Wallowa
Light type: Cross-Polarized Light
Magnification: 400.0
Submitted by: Mark Shapley
Notes: none
Image Tags: none
Unique Identification: Tephra - Mount Saint Helens Y
Site name: Wallowa
Light type: Plane-Polarized Light
Magnification: 100.0
Submitted by: Mark Shapley
Notes: none
Image Tags: none
Unique Identification: Tephra - Mount Saint Helens Y
Site name: Wallowa
Light type: Cross-Polarized Light
Magnification: 100.0
Submitted by: Mark Shapley
Notes: none
Image Tags: none

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