Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Stevenson, Skamania Co., Washington, USA

Oldest recorded age at locality: 36
Youngest recorded age at locality: 28

mindat Locality ID: 14995
mindat URL: http://www.mindat.org/loc-14995.html

Tectonic Settings:

Total number of sublocalities beneath "Stevenson, Skamania Co., Washington, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Big Mountain
Bunker Hill
Nelson Creek
Paradise Ridge
Rock Creek

Latitude: 45°45'16"N
Longitude: 121°55'25"W
Decimal Degree (lat, lon): 45.754444444444,-121.92361111111

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Analcime	Calcite	Mordenite	None	Not in a structural group	Quartz

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al C Ca H K Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Calcite Mordenite None Not in a structural group Quartz

5 IMA Minerals at location:

Analcime ()*	Calcite ()*	Laumontite ()*	Mordenite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	36	28	1	285589	1627
Calcite ()*	Calcite	Ca(CO₃)	36	28	1	285589	27770
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O			1	285588	1271
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O	36	28	1	285589	405
Quartz ()*	Quartz	SiO₂	36	28	2	285585,285589	61156

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	NAVDAT-5120	36	28	32±4					5120						18264	Rock Creek, Stevenson, Skamania Co., Washington, USA		NAVDAT		NAVDAT
	NAVDAT-5121	36	28	32±4					5121						18264	Rock Creek, Stevenson, Skamania Co., Washington, USA		NAVDAT		NAVDAT

All locality data graciously provided by mindat.org

All age data...