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Loma Chata, Quebrada del Arroyo Sauce Mayo, Sierra de La Ramada, La Ramada y La Cruz, Burruyacú Department, Tucumán Province, Argentinai
Regional Level Types
Loma Chata- not defined -
Quebrada del Arroyo Sauce MayoValley
Sierra de La RamadaSierra
La Ramada y La CruzMunicipality
Burruyacú DepartmentDepartment
Tucumán ProvinceProvince
ArgentinaCountry

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Latitude & Longitude (WGS84):
26° 40' 33'' South , 64° 59' 43'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Alderetes38,466 (2016)20.8km
Tafí Viejo48,459 (2016)26.9km
San Miguel de Tucumán781,023 (2016)27.9km
Burruyacú2,037 (2015)31.9km
Yerba Buena50,783 (2016)35.5km
Name(s) in local language(s):
Loma Chata, Quebrada del Arroyo Sauce Mayo, Sierra de La Ramada, Departamento Burruyacú, Provincia de Tucumán, Argentina


Elevation: 719 m. above sea level.

Geological history:
In the Quebrada del Arroyo Sauce Mayo, in the spot known as "Loma Chata", on the South-eastern slope of the saw the Ramada, emerges a basaltic olivinic, whose Petrology, composition body geochemistry and relationship with other basaltic bodies linked to the depositional history Group Salta in the Argentine Northwest. You can access the area of mineralization from the city of San Miguel de Tucuman provincial No. 304 route up the city of La Ramada and thence towards the West by a private road that leads to the mouth of the stream above. Body, greyish brown to black, is located in the basal levels of the Pirgua subgroup and exhibits disjunction columnar on both banks of the Creek, forming deep cliffs from the foot of saw up to 50 m upstream from the confluence of the Alpasorcones and Sauce Mayo creeks. Presents a hipidiomorphic porphyritic texture and holocrystalline, with a paste microcrystaline composed of small individuals of augite and plagioclase, zeolites, where is inserso microphenocrystals of olivine as individually duos euhedral to subhedral, rusty or theterados zeolites and sheets of biotite and mineopaque General mostly euhedral, consequential frequency of the oxidation of the pyroxenes. Disglobal irregularly, zeolite and calcite in lesser proportion vesicles were observed. The plagioclase and clinopyroxene are presented in small proportion as microliths, resulting not possible to determine the composition of the feldspar. Studied basalts would be related to other outcrops in the province of Tucumán, in the towns of El Cadillal and Cumbres del Periquillo, as dated by the K/Ar method yielded ages of 128 to 97 million years for the complex high vulcanites of Las Salinas, the El Cadillal training, and 111 ± 5 million years to the bajump olivinic of Cumbres del Periquillo. Also would be equivalent to the volcanobasic training tas the high on the northern slope of the Sierra de La Ramada.
Recent studies carried out jointly with the National University of Salta, Anomalitaron they analyze the geochemistry of the basalts of Sauce Mayo, classifying them as alkali basalts and volcanism. These observations are consistent with the made for the basal exuberance of the Pirgua subgroup. Also well correspond to the vulcanites of the first effusive cycle of the Salta group. Regarding their origin, are considered movements responsible for the for snowing information systems of tensional fractures submeridional, why extruyeron queuedas basaltic related especially to the base of the Pirgua subgroup. Volcanism is would have developed in a marginal position along the edges of the dorsal Salta-Jujuy and arc Pampeano.

Primary mineralization:
Olivine - Augite - plagioclase – pyroxenes (clinopyroxene) - zeolites - Biotite - calcite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


3 valid minerals.

Detailed Mineral List:

Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.
'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: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.
Calcite
Formula: CaCO3
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.
'Clinopyroxene Subgroup'
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.
'Fayalite-Forsterite Series'
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMO AUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo. Miguel Lillo 205. 4000. Tucumán,Argentina.falcon@csnat.unt.edu.ar
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo. ; Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMO AUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo. Miguel Lillo 205. 4000. Tucumán,Argentina.falcon@csnat.unt.edu.ar
'Pyroxene Group'
Formula: ADSi2O6
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.
'Zeolite Group'
Reference: Carlos M. Falcón, LOS BASALTOS OLIVÍNICOS DEL EXTREMOAUSTRAL DE LA SIERRA DE LA RAMADA,PROVINCIA DE TUCUMÁN. Cátedra de Geología de Combustibles. INSUGEO.Facultad de Ciencias Naturales e Instituto Miguel Lillo.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Kaolinite9.ED.05Al2(Si2O5)(OH)4
'Zeolite Group'9.G0.
Unclassified Minerals, Rocks, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
H KaoliniteAl2(Si2O5)(OH)4
CCarbon
C CalciteCaCO3
OOxygen
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
O CalciteCaCO3
O Pyroxene GroupADSi2O6
O KaoliniteAl2(Si2O5)(OH)4
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
NaSodium
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
AlAluminium
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Si Pyroxene GroupADSi2O6
Si KaoliniteAl2(Si2O5)(OH)4
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca CalciteCaCO3
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Falcón, Carlos M. (xxxx) Los basaltos olivínicos del extremo austral de la Sierra de la Ramada, Província de Tucumán. Cátedra de Geología de Combustibles. INSUGEO. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Miguel Lillo 205. 4000. Tucumán, Argentina. falcon@csnat.unt.edu.ar.

Other Regions, Features and Areas containing this locality

South AmericaContinent
South America PlateTectonic Plate

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