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:
Sakoany Deposit, Katsepy, Mitsinjo, Boeny, Madagascar

Oldest recorded age at locality: 66
Youngest recorded age at locality: 61.6

mindat Locality ID: 5531
mindat URL: http://www.mindat.org/loc-5531.html

Tectonic Settings:

Total number of sublocalities beneath "Sakoany Deposit, Katsepy, Mitsinjo, Boeny, Madagascar": 0
Total number of bottom-level sublocalities: 0

Latitude: 15°51'18"S
Longitude: 46°13'50"E
Decimal Degree (lat, lon): -15.855,46.230555555556

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.

Baryte	None

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: O S Sr

Elements from minerals reported directly at this locality: O S Sr

Structural Groups for minerals in this locality:
Baryte None

1 IMA Minerals at location:

Celestine ()*

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
Celestine ()*	Baryte	Sr(SO₄)	66	61.6	0		1252

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
MR41_405_001	The celestine-containing geodes or concretions are found in a sedimentary deposit consisting of lenses of Lower Paleocene sandy marls up to 30 meters thick bordered by a fossiliferous limestone below and a sandy chalky conglomerate above.

1 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
	MR41_405_001	66	61.6	Lower Paleocene											5531	Sakoany Deposit, Katsepy, Mitsinjo, Boeny, Madagascar	Sakoany	Wilson (2010)		MR41_405	Diagenetic (post-depositional) processes involving the circulation of low-temperature water (probably seawater, supplying the Sr) and the decomposition of organic material (yielding sulfate) resulted in strontium enrichment and the deposition of celestine (strontium sulfate ) crystals as geodes , nodules and concretions.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...