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:
Tom Deposit, Macmillan Pass, Watson Lake Mining District, Yukon, Canada

Oldest recorded age at locality: 393
Youngest recorded age at locality: 359

mindat Locality ID: 194139
mindat URL: http://www.mindat.org/loc-194139.html

Tectonic Settings:

Total number of sublocalities beneath "Tom Deposit, Macmillan Pass, Watson Lake Mining District, Yukon, Canada": 0
Total number of bottom-level sublocalities: 0

Latitude: 63°10'0"N
Longitude: 130°12'"W
Decimal Degree (lat, lon): 63.166666666667,-130.2

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.

Aragonite	Arsenopyrite	Baryte	Calcite	Chalcopyrite	Clay	Feldspar	Kaolinite	Marcasite	Mica
Nickeline	None	Pyrite	Quartz	Rocksalt	Sphalerite

Ankerite ()*	Arsenopyrite ()*	Baryte ()*	Barytocalcite ()*	Benstonite ()*
Celsian ()*	Chalcopyrite ()*	Cymrite ()*	Dolomite ()*	Galena ()*
Kaolinite ()*	Marcasite ()*	Muscovite ()*	Norsethite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Siderite ()*	Sphalerite ()*	Witherite ()*

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 As Ba C Ca Cu Fe H K Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Al As Ba C Ca Cu Fe H K Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Aragonite Arsenopyrite Baryte Calcite Chalcopyrite Clay Feldspar Kaolinite Marcasite Mica
Nickeline None Pyrite Quartz Rocksalt Sphalerite

20 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	393	359	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS	393	359	9052
Baryte ()*	Baryte	Ba(SO₄)	393	359	11547
Barytocalcite ()*	None	BaCa(CO₃)₂	393	359	83
Benstonite ()*	None	Ba₆Ca₆Mg(CO₃)₁₃	393	359	17
Celsian ()*	Feldspar	Ba(Al₂Si₂O₈)	393	359	100
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	393	359	27198
Cymrite ()*	None	Ba(Si,Al)₄(O,OH)₈·H₂O	393	359	46
Dolomite ()*	None	CaMg(CO₃)₂	393	359	9895
Galena ()*	Rocksalt	PbS	393	359	24243
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	393	359	5591
Marcasite ()*	Marcasite	FeS₂	393	359	5674
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	393	359	17380
Norsethite ()*	None	BaMg(CO₃)₂	393	359	30
Pyrite ()*	Pyrite	FeS₂	393	359	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	393	359	9056
Quartz ()*	Quartz	SiO₂	393	359	61156
Siderite ()*	Calcite	Fe(CO₃)	393	359	6417
Sphalerite ()*	Sphalerite	ZnS	393	359	21482
Witherite ()*	Aragonite	Ba(CO₃)	393	359	251

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
	sedexmvt-00082	383	359	Late Devonian		host rock age									194139	Tom Deposit, Macmillan Pass, Watson Lake Mining District, Yukon, Canada	Tom	Taylor et al. (2009)		USGSOFR2009_1297
	sedznpb-00134	393	359	Middle–Late\|Devonian											194139	Tom Deposit, Macmillan Pass, Watson Lake Mining District, Yukon, Canada	Tom	Singer et al. (2009)		USGSOFR2009-1252

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...