Kotappa Konda outcrops, Prakasam District, Coastal Andhra Region, Andhra Pradesh, Indiai
| Regional Level Types | |
|---|---|
| Kotappa Konda outcrops | Group of Outcrops |
| Prakasam District | District |
| Coastal Andhra Region | Region |
| Andhra Pradesh | State |
| India | Country |
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Latitude & Longitude (WGS84):
16° 1' North , 80° 0' East
Latitude & Longitude (decimal):
Locality type:
Group of Outcrops
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Govindapuram,Chilakaluripet,Guntur | 3,000 (2014) | 18.9km |
| Chilakalūrupet | 94,011 (2015) | 19.6km |
| Addanki | 28,547 (2017) | 23.1km |
| pedda nakkalapalem | 2,500 (2014) | 24.0km |
| Narasaraopet | 97,194 (2015) | 24.8km |
There are 6 outcrops of nepheline syenite in fields surrounding the hill of Kotappa Konda, which lies c. 15 km NE of Elchuru. The most extensive outcrop is c. 30x30 m in extent. The outcrops trend NW-SE.
Age probably Proterozoic.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ Calcite Formula: CaCO3 Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ Cancrinite Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ 'Feldspar Group' Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ 'Feldspar Group var. Perthite' Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ 'Hornblende' Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ Microcline Formula: K(AlSi3O8) Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ Nepheline Formula: Na3K(Al4Si4O16) Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
| ⓘ Zircon Formula: Zr(SiO4) Reference: Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| ⓘ | Cancrinite | 9.FB.05 | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Nepheline | 9.FA.05 | Na3K(Al4Si4O16) |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'var. Perthite' | - | |
| ⓘ | 'Hornblende' | - | |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| O | Oxygen | |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Nepheline | Na3K(Al4Si4O16) |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Na | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Na | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Al | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| Si | Silicon | |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Ca | Calcium | |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ca | ⓘ Cancrinite | (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Woolley A.R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe, p.104
Narasinga Rao, K., & Leelanandam, C. (1974). Occurrence of nepheline syenites near Kotappa Konda, Guntur District, Andhra Pradesh. Jour, Indian Acad. Geosci, 17, 53-56.
Other Regions, Features and Areas containing this locality
AsiaContinent
Indian Plate (India Plate)Tectonic Plate
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