Locality type: | Intrusion |
Classification |
---|
|
Species: | Actinolite |
Formula: | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Age information |
---|
|
Maximum recorded age: | 2260 ± 42 Ma |
Minimum recorded age: | 2260 ± 42 Ma |
Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
---|
1 | 2260 ± 42 Ma | Rhyacian | - | K-Ar |
---|
|
Sample references: | |
Confirmation |
---|
|
Validity: | Believed Valid |
Data |
---|
|
Mineral Data: | Click here to view Actinolite data |
Locality Data: | Click here to view Siilinjärvi Carbonatite Intrusion, Siilinjärvi, North Savo, Finland |
Data Identifiers |
---|
|
Mindat Occurrence Record ID: | 1374145 |
Long-form Identifier: | 1:3:1374145:3 |
GUID (UUID V4): | 320cf4e1-74b6-44c2-af34-991ef0548651 |
Nearest other occurrences of Actinolite |
---|
|
|
48.9km (30.4 miles) | ⓘKotalahti, Leppävirta, North Savo, Finland |
56.7km (35.3 miles) | ⓘKiviniemi, Rautalampi, North Savo, Finland |
87.4km (54.3 miles) | ⓘNunnanlahti, Juuka, North Karelia, Finland |
References |
---|
|
Tichomirowa, M., Whitehouse, M. J., Gerdes, A., Götze, J., Schulz, B., & Belyatsky, B. V. (2013). Different zircon recrystallization types in carbonatites caused by magma mixing: Evidence from U–Pb dating, trace element and isotope composition (Hf and O) of zircons from two Precambrian carbonatites from Fennoscandia. Chemical Geology, 353, 173-198. |