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Pia Ma Intrusion, Chợ Đồn District, Bac Kan Province, Vietnami
| Regional Level Types | |
|---|---|
| Pia Ma Intrusion | Intrusion |
| Chợ Đồn District | District |
| Bac Kan Province | Province |
| Vietnam | Country |
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Latitude & Longitude (WGS84):
22° 14' 59'' North , 105° 40' 0'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Bắc Kạn | 17,701 (2012) | 20.7km |
| Thành Phố Tuyên Quang | 36,430 (2013) | 66.5km |
Nepheline and alkaline syenites with, at the southern end, a body of ijolitic rocks, between which and the syenites is a zone of melteigite (Chi & Flower 2014). There are several small intrusions of syenite separate from the main complex.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ Nepheline Formula: Na3K(Al4Si4O16) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Nepheline | 9.FA.05 | Na3K(Al4Si4O16) |
| Unclassified | |||
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | Oxygen | |
| O | ⓘ Nepheline | Na3K(Al4Si4O16) |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| F | Fluorine | |
| F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Al | Aluminium | |
| Al | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Cl | Chlorine | |
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| K | Potassium | |
| K | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Ca | Calcium | |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Geochronology
Mineralization age: Cambrian : 519 ± 40 MaImportant note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
| Geologic Time | Rocks, Minerals and Events | ||||||
|---|---|---|---|---|---|---|---|
| Phanerozoic | |||||||
| Paleozoic | |||||||
| Cambrian | |||||||
| Cambrian Series 2 |
| ||||||
Other Regions, Features and Areas containing this locality
AsiaContinent
Eurasian PlateTectonic Plate
- West CathaysiaOrogenic Belt
Vietnam
- NE Vietnam Sn-W metallographic beltMineral Belt
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