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:
Elk Mountain, Toutle, Cowlitz Co., Washington, USA

Oldest recorded age at locality: 39.6
Youngest recorded age at locality: 32.4

mindat Locality ID: 15515
mindat URL: http://www.mindat.org/loc-15515.html

Tectonic Settings:

Total number of sublocalities beneath "Elk Mountain, Toutle, Cowlitz Co., Washington, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Road 1440
Road 1449G

Latitude: 46°7'57"N
Longitude: 122°27'40"W
Decimal Degree (lat, lon): 46.1325,-122.46111111111

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	Gyrolite	Mordenite	Natrolite	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 Mg Na O Si

Elements from minerals reported directly at this locality:

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

10 IMA Minerals at location:

Analcime ()*	Calcite ()*	Epistilbite ()*	Gyrolite ()*	Laumontite ()*
Mesolite ()*	Offretite ()*	Okenite ()*	Quartz ()*	Scolecite ()*

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	39.6	32.4	1	283983	1627
Calcite ()*	Calcite	Ca(CO₃)	39.6	32.4	2	283983,283984	27770
Epistilbite ()*	Mordenite	Ca₃[Si₁₈Al₆O₄₈]·16H₂O	39.6	32.4	1	283983	138
Gyrolite ()*	Gyrolite	NaCa₁₆(Si₂₃Al)O₆₀(OH)₈·14H₂O	39.6	32.4	2	283983,283984	142
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	39.6	32.4	2	283983,283984	1271
Mesolite ()*	Natrolite	Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O	39.6	32.4	2	283983,283984	425
Offretite ()*	Not in a structural group	KCaMg(Si₁₃Al₅)O₃₆·15H₂O	39.6	32.4	1	283983	146
Okenite ()*	None	Ca₁₀Si₁₈O₄₆·18H₂O	39.6	32.4	1	283984	71
Quartz ()*	Quartz	SiO₂	39.6	32.4	1	283983	61156
Scolecite ()*	Natrolite	Ca(Si₃Al₂)O₁₀·3H₂O	39.6	32.4	2	283983,283984	390

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-29430	39.6	32.4	36±3.6	29430	15515	Elk Mountain, Toutle, Cowlitz Co., Washington, USA	NAVDAT	NAVDAT
NAVDAT-29447	39.6	32.4	36±3.6	29447	15515	Elk Mountain, Toutle, Cowlitz Co., Washington, USA	NAVDAT	NAVDAT
NAVDAT-29451	39.6	32.4	36±3.6	29451	15515	Elk Mountain, Toutle, Cowlitz Co., Washington, USA	NAVDAT	NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...