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Id 172
Identification Type Lithofacies
Name Tephra - Glacier Peak G
Distinguishing Features
Description Lithofacies defined as the directly deposited ejecta from the 'Series G' Plinian eruption of Glacier Peak, Washington state, ca. 13500 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
GNP-SWF10-3D-6L-1-W_29.5cm_GlacierPeakG_top_10x_pp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Plane-Polarized Light
Magnification: 100
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_29.5cm_GlacierPeakG_top_10x_cp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Cross-Polarized Light
Magnification: 100
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_29.5cm_GlacierPeakG_top_40x_pp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_29.5cm_GlacierPeakG_top_40x_cp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_29.5cm_GlacierPeakG_top_63x_pp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Plane-Polarized Light
Magnification: 630
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_29.5cm_GlacierPeakG_top_63x_cp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Cross-Polarized Light
Magnification: 630
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_30.5cm_GlacierPeakG_bottom_10x_pp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Plane-Polarized Light
Magnification: 100
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_30.5cm_GlacierPeakG_bottom_10x_cp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Cross-Polarized Light
Magnification: 100
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_30.5cm_GlacierPeakG_bottom_40x_pp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Plane-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none
GNP-SWF10-3D-6L-1-W_30.5cm_GlacierPeakG_bottom_40x_cp-600.jpg
Unique Identification: Tephra - Glacier Peak G
Site name: Swiftcurrent Lake
Light type: Cross-Polarized Light
Magnification: 400
Submitted by: Jess Rodysill
Notes: none
Image Tags: none

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