Show UniqueIdentification

Id	176
Identification Type	Lithofacies
Name	Tephra- Mazama
Distinguishing Features
Description	Lithofacies defined as the directly deposited ejecta from the cataclysmic Plinian eruption of Mt. Mazama, Oregon, ca. 7630 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 Holocene
External Resources
Imposters
Images

	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Plane-Polarized Light Magnification: 100.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Cross-Polarized Light Magnification: 100.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Plane-Polarized Light Magnification: 200.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Cross-Polarized Light Magnification: 200.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Plane-Polarized Light Magnification: 100.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Cross-Polarized Light Magnification: 100.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Plane-Polarized Light Magnification: 200.0 Submitted by: Mark Shapley Notes: none Image Tags: none
	Unique Identification: Tephra- Mazama Site name: Pettit Light type: Cross-Polarized Light Magnification: 200.0 Submitted by: Mark Shapley Notes: none Image Tags: none

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