Laisamis Lava Field, Marsabit County, Kenyai
| Regional Level Types | |
|---|---|
| Laisamis Lava Field | Lava Field |
| Marsabit County | County |
| Kenya | Country |
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Latitude & Longitude:
2° North , 37° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~235km
Type:
Age:
12.2 ± 3.0 to 9.9 ± 1.0 Ma
Geologic Time:
Dating method:
K-Ar
Reference for age:
Brotzu, P., Morbidelli, L., Nicoletti, M., Piccirillo, E. M., & Traversa, G. (1984). Miocene to Quaternary volcanism in eastern Kenya: sequence and geochronology. Tectonophysics, 101(1-2), 75-86. doi.org/10.1016/0040-1951(84)90043-X
Mindat Locality ID:
406848
Long-form identifier:
mindat:1:2:406848:1
GUID (UUID V4):
33f7950f-30c5-41e1-aba1-b75ce0a67f11
Lavas of olivine basalt form plateau in the NE, east, a large area in the centre and a smaller area in the NW of the Laisamis degree sheet (Charsley 1987).
Approx coords range: 1º00' - 2º00'N; 37º00' - 38º00'E.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
9 valid minerals.
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:
| ⓘ Aegirine-augite Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 References: |
| ⓘ Aenigmatite Formula: Na4[Fe2+10Ti2]O4[Si12O36] References: |
| ⓘ Analcime Formula: Na(AlSi2O6) · H2O References: |
| ⓘ Andradite Formula: Ca3Fe3+2(SiO4)3 References: |
| ⓘ Andradite var. Melanite Formula: Ca3(Fe3+,Ti)2(SiO4)3 References: |
| ⓘ Anorthite Formula: Ca(Al2Si2O8) References: |
| ⓘ Anorthite var. Labradorite Formula: (Ca,Na)[Al(Al,Si)Si2O8] References: |
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 References: |
| ⓘ Augite var. Titanium-bearing Augite Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 References: |
| ⓘ 'Chrome-Spinel (of Dana)' References: |
| ⓘ 'Fayalite-Forsterite Series' References: |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
| ⓘ Nepheline Formula: Na3K(Al4Si4O16) References: |
| ⓘ 'Pyroxene Group' Formula: ADSi2O6 References: |
| ⓘ Sanidine Formula: K(AlSi3O8) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| Group 9 - Silicates | |||
| ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | var. Melanite | 9.AD.25 | Ca3(Fe3+,Ti)2(SiO4)3 |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | var. Titanium-bearing Augite | 9.DA.15 | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| ⓘ | Aegirine-augite | 9.DA.20 | (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6 |
| ⓘ | Aenigmatite | 9.DH.40 | Na4[Fe2+10Ti2]O4[Si12O36] |
| ⓘ | Nepheline | 9.FA.05 | Na3K(Al4Si4O16) |
| ⓘ | Sanidine | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| ⓘ | var. Labradorite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
| ⓘ | Analcime | 9.GB.05 | Na(AlSi2O6) · H2O |
| Unclassified | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
| ⓘ | 'Chrome-Spinel (of Dana)' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | Oxygen | |
| O | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| O | ⓘ Aenigmatite | Na4[Fe102+Ti2]O4[Si12O36] |
| O | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Anorthite | Ca(Al2Si2O8) |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Nepheline | Na3K(Al4Si4O16) |
| O | ⓘ Sanidine | K(AlSi3O8) |
| O | ⓘ Andradite var. Melanite | Ca3(Fe3+,Ti)2(SiO4)3 |
| O | ⓘ Pyroxene Group | ADSi2O6 |
| O | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Na | Sodium | |
| Na | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Na | ⓘ Aenigmatite | Na4[Fe102+Ti2]O4[Si12O36] |
| Na | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Na | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Na | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Na | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Mg | Magnesium | |
| Mg | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Al | Aluminium | |
| Al | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Al | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Al | ⓘ Anorthite | Ca(Al2Si2O8) |
| Al | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Al | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Al | ⓘ Sanidine | K(AlSi3O8) |
| Al | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Si | Silicon | |
| Si | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Si | ⓘ Aenigmatite | Na4[Fe102+Ti2]O4[Si12O36] |
| Si | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Anorthite | Ca(Al2Si2O8) |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Si | ⓘ Nepheline | Na3K(Al4Si4O16) |
| Si | ⓘ Sanidine | K(AlSi3O8) |
| Si | ⓘ Andradite var. Melanite | Ca3(Fe3+,Ti)2(SiO4)3 |
| Si | ⓘ Pyroxene Group | ADSi2O6 |
| Si | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| K | Potassium | |
| K | ⓘ Nepheline | Na3K(Al4Si4O16) |
| K | ⓘ Sanidine | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Anorthite var. Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
| Ca | ⓘ Andradite var. Melanite | Ca3(Fe3+,Ti)2(SiO4)3 |
| Ca | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Ti | Titanium | |
| Ti | ⓘ Aenigmatite | Na4[Fe102+Ti2]O4[Si12O36] |
| Ti | ⓘ Andradite var. Melanite | Ca3(Fe3+,Ti)2(SiO4)3 |
| Ti | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
| Fe | Iron | |
| Fe | ⓘ Aegirine-augite | (NaaCabFec2+Mgd)(Fee3+AlfFeg2+Mgh)Si2O6 |
| Fe | ⓘ Aenigmatite | Na4[Fe102+Ti2]O4[Si12O36] |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Andradite var. Melanite | Ca3(Fe3+,Ti)2(SiO4)3 |
| Fe | ⓘ Augite var. Titanium-bearing Augite | (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6 |
Other Regions, Features and Areas containing this locality
African Plate
- Lamu Embayment basinBasin
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References
