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:
Weddell Sea, Western Antarctica, Antarctica

Oldest recorded age at locality: 0
Youngest recorded age at locality: 0.001

mindat Locality ID: 40
mindat URL: http://www.mindat.org/loc-40.html

Tectonic Settings:

Total number of sublocalities beneath "Weddell Sea, Western Antarctica, Antarctica": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
71°22'S; 16°34'W

Latitude: 71°21'59"S
Longitude: 16°33'59"W
Decimal Degree (lat, lon): -71.366388888889,-16.566388888889

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.

Gypsum	None	Oxalate	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: C Ca H O S Si

Elements from minerals reported directly at this locality: C Ca H O S

Structural Groups for minerals in this locality:
Gypsum None Oxalate Quartz

5 IMA Minerals at location:

Earlandite ()*	Gypsum ()*	Ikaite ()*	Quartz ()*	Weddellite ()*

Mineral name	Structural Groups	IMA Formula	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Earlandite ()*	None	Ca₃(C₆H₅O₇)₂·4H₂O	0.001	1	1952	1
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	0.001	0		6890
Ikaite ()*	None	Ca(CO₃)·6H₂O	0.001	0		12
Quartz ()*	Quartz	SiO₂	0.001	1	1952	61156
Weddellite ()*	Oxalate	Ca(C₂O₄)·2H₂O	0.001	0		32

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_391	Earlandite was reported in surface sediments of the Weddell Sea at the water depth of 2580 m along with quartz and foram Rhabdammina linearis, Brady.

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
	Michelle_391	0	0.001	0-0.001		Age of surface sediment									159589	71°22'S; 16°34'W, Weddell Sea, Western Antarctica, Antarctica	Weddell Sea	Mackensen and Douglas (1989)	10.1016/0198-0149(89)90034-4	ORP36_879	Age of Weddell Sea sediments based on author's sedimentation rate.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...