IEDA / DECADE Detail

Data from the Global Volcanism Program of the Smithsonian Institution

Details for: Chacana

The floor of the massive Chacana caldera is seen here in the foreground, looking SE with glacier-covered Antisana volcano in the distance. Chacana is a 32 x 24 km caldera complex of Pliocene-Holocene age. Its outer flanks extend over 50 km, making it one of the largest rhyolitic centers of the northern Andes. Numerous lava domes were constructed within the caldera, which has been the source of frequent Holocene explosive eruptions. Dacitic lava flows were erupted during the 18th century and numerous hot springs are found on the caldera floor. Photo by Minard Hall, 1976 (Escuela Politécnica Nacional, Quito).

Volcano Number:	352022
Volcano Name:	Chacana
Country:	Ecuador
Volcano Type:	Caldera
Last Eruption:	1773 CE
Elevation:	4643m
Tectonic Setting:	Subduction zone / Continental crust (> 25 km)
Pop. within 5km:	81716
Pop. within 10km:	81716
Pop. within 30km:	348743
Pop. within 100km:	3292546
Latitude:	-0.375
Longitude:	-78.25

Eruption Data from the Global Volcanism Program of the Smithsonian Institution

Volcano Number	Volcano Name	Eruption Number	Activity Type	Explosivity Index Max	Activity Area	Start Evidence Method	Start Date
352022	Chacana	11454	Confirmed Eruption			Tephrochronology	-8050
352022	Chacana	11455	Confirmed Eruption			Radiocarbon (uncorrected)	-1580
352022	Chacana	11456	Confirmed Eruption			Tephrochronology	-50
352022	Chacana	11457	Confirmed Eruption	0	SW flank	Historical Observations	1760
352022	Chacana	11458	Confirmed Eruption	0	South part of caldera	Historical Observations	1773

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%	FeO Total WT%	MnO WT%	MgO WT%	CaO WT%	Na₂O WT%	K₂O WT%	P₂O₅ WT%	Total WT%	Ba PPM	Cr PPM	Cs PPM	Cu PPM	Dy PPM	Nb PPM	Ni PPM	Pb PPM	Rb PPM	Sc PPM	Sr PPM	U PPM	V PPM	Y PPM	Zn PPM	Zr PPM	⁸⁷Sr / ⁸⁶Sr RATIO	¹⁴³Nd / ¹⁴⁴Nd RATIO	²⁰⁶Pb / ²⁰⁴Pb RATIO	²⁰⁷Pb / ²⁰⁴Pb RATIO	²⁰⁸Pb / ²⁰⁴Pb RATIO
E05137	DETAILS	ICPMS_LA	Rock	Igneous Intermediate Volcanic	Andesite															1.95		2					12.9		3
E05137	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.704281	0.51277	18.933	15.625	38.704
E05137	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	62	0.68	16.08	5.67		0.09	3.26	5.49	4.05	2.17	0.39	99.88	778	62		41		7.1	45	11	64.1		579		122	11.1	78	135
E05143	DETAILS	ICPMS_LA	Rock	Igneous Intermediate Volcanic	Andesite															1.74		1.9					15.2		2.4
E05143	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.704231	0.512762	18.901	15.633	38.722
E05143	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	59.62	0.79	16.41	6.63		0.1	4.08	6.27	3.98	1.79	0.35	100	777	145		51		6.8	52	9	44.1		719		144	10.9	88	146
E05147	DETAILS	ICPMS_LA	Rock	Igneous Intermediate Volcanic	Andesite															1.22		2.2					14.5		1.7
E05147	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.704255	0.512728	18.912	15.61	38.675
E05147	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	57.48	0.83	16.31	6.84		0.1	3.89	6.25	3.69	1.97	0.35	97.71	747	144		46		7.5	60	8	54.7		623		151	13.8	87	166
E05021	DETAILS	ICPMS_LA	Rock	Igneous Intermediate Volcanic	Andesite															1.84		2.1					14.2		2.6
E05021	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.704295	0.512742	18.953	15.646	38.799
E05021	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	61.66	0.74	16.64	6.15		0.09	3.65	5.95	4.1	1.06	0.31	100	696	72		34		7.1	34	10.8	56.5		610		124	11.5	79	139
CH-3	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite														246		45			93						182		77
CH-3	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.704036	0.512841	18.956	15.613	38.68
CH-3	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	57.78	0.78	16.2		6.9	0.12	6.4	7.23	3.18	1.27	0.13	99.99	442		0.91		2.62	4.42		6.07	34.3	24	399	1.66		13.3		77
E94008	DETAILS	ICPMS	Rock	Igneous Intermediate Volcanic	Andesite																	2.4							2.6
E94008	DETAILS	TIMS	Rock	Igneous Intermediate Volcanic	Andesite																													0.70425		18.894	15.621	38.689
E94008	DETAILS	XRF	Rock	Igneous Intermediate Volcanic	Andesite	62.03	0.63	15.38	4.91		0.08	3.79	5.28	3.8	2.08	0.26	98.24	801			26		8		22	65	15	657		125	10	68	96

Data from the SESAR Database

IGSN	Object Name	Object Type	Object Class	Material	Field Name	Link
NHB0074A6	NMNH 117456-4 (PET)	Individual Sample		Rock>Igneous	Obsidian	Details

Data from the MaGa Database

Sorry. No data exist for this volcano in the MaGa database.