IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Andahua-Orcopampa

The cinder cones at the center and upper right, surrounded by a prominent field of lava flows, are located in the Andahua valley, known locally as the "Valley of the Volcanoes." The large 60 x 60 km scoria cone and lava field contains extremely youthful lava flows, some of which may be only a few hundred years old. The volcanic field was reported to have been active during the time of the Incas. Lava flows have repeatedly dammed the Río Andagua valley, and an existing small lake was impounded by the youngest lavas. Photo by Norm Banks, 1988 (U.S. Geological Survey).

Volcano Number:	354004
Volcano Name:	Andahua-Orcopampa
Country:	Peru
Volcano Type:	Pyroclastic cone(s)
Last Eruption:	1490 CE
Elevation:	4713m
Tectonic Setting:	Subduction zone / Continental crust (> 25 km)
Pop. within 5km:	10317
Pop. within 10km:	10317
Pop. within 30km:	16541
Pop. within 100km:	171897
Latitude:	-15.42
Longitude:	-72.33

Eruption Data from the Global Volcanism Program of the Smithsonian Institution

Volcano Number	Volcano Name	Eruption Number	Activity Type	Activity Area	Start Evidence Method	Start Date
354004	Andahua-Orcopampa	11737	Confirmed Eruption	Cerro Tichsó	Radiocarbon (uncorrected)	-2110
354004	Andahua-Orcopampa	11738	Confirmed Eruption	Cerro Maurus I	Radiocarbon (uncorrected)	-940
354004	Andahua-Orcopampa	11739	Confirmed Eruption	Chilcayoc Grande	Radiocarbon (uncorrected)	1490
354004	Andahua-Orcopampa	11740	Uncertain Eruption			1913/3/6

Emissions Data from the Global Volcanism Program of the Smithsonian Institution

Sorry. No emissions data found for this volcano.

Data from the Earthchem Library

Sorry. No data exist for this volcano in the EarthChem Library.

Data from the Earthchem Portal

Sample ID	LINK	Method	Material	Rock Class	Rock Name	SiO₂ WT%	TiO₂ WT%	Al₂O₃ WT%	Fe₂O₃ Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Ba PPM	Co PPM	Cr PPM	Cs PPM	Dy PPM	Nb PPM	Ni PPM	Pb PPM	Rb PPM	Sb PPM	Sc PPM	Sr PPM	U PPM	V PPM	Y PPM	Zr PPM	⁸⁷Sr / ⁸⁶Sr RATIO	¹⁴³Nd / ¹⁴⁴Nd RATIO
AND-99-06	DETAILS	TIMS	Rock	Igneous Unknown Volcanic	Not-given																												0.705894	0.51249
AND-99-06	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite															0.4									0.8
AND-99-06	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	55.7	1.34	16.7	7.35	0.098	3.24	6.27	4.76	2.49	0.656	98.604	492	23	55				20				16.8	1204
C1A	DETAILS	ICPOES	Rock	Igneous Intermediate Volcanic	Trachyandesite	57.79	1.27	16.93	6.64	0.08	2.69	6.08	4.49	2.44	0.51	98.92	1126		40		2.6	11		9	44			1054	0.6	141	11	165
C1A	DETAILS	NOT GIVEN	Rock	Igneous Intermediate Volcanic	Trachyandesite																												0.706265	0.512472
OP-11-02	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite												1380											1180
OP-12	DETAILS	ICPAES	Rock	Igneous Intermediate Volcanic	Andesite												1220											934
ARCH1	DETAILS	ICPOES	Rock	Igneous Intermediate Volcanic	Andesite	61.76	1	15.9	5.42	0.08	2.23	4.66	4.91	3.02	0.47	99.45	1282		30		3	36		15	93	7.6		913	1.5	124	13	231
AND-99-04	DETAILS	TIMS	Rock	Igneous Unknown Volcanic	Not-given																												0.706318	0.512444
AND-99-04	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite															0.6									1.1
AND-99-04	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	60.4	1.09	16.7	5.93	0.076	2.36	5.09	4.71	2.88	0.442	99.678	409	26	79				41				20.3	727
AND-99-19	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite															0.8									1.5
AND-99-19	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	57.8	1.256	17	6.82	0.091	2.96	6.02	4.98	2.54	0.552	100	604	27	173				80				15.3	806
M198485	DETAILS	AAS	Rock	Igneous Mafic Volcanic	Basalt									7.22		7.22
M198486	DETAILS	AAS	Rock	Igneous Mafic Volcanic	Basalt									13.08		13.08

Data from the SESAR Database

IGSN	Object Name	Object Type	Object Class	Material	Field Name	Link
NHB001RB4	NMNH 169855-00 (MIN)	Individual Sample		Mineral>Miargyrite	Miargyrite with pyrargyrite	Details
NHB003MTM	NMNH R18936-00 (MIN)	Individual Sample		Mineral>Uchucchacuaite	Uchucchacuaite	Details

Data from the MaGa Database

Error. The MaGa Web Services (http://www.magadb.net/web_services/) are down.