152:-like cone that generated a blocky lava flow 2.2 kilometres (1.4 mi) long. This lava flow also dammed an ephemeral stream, creating a lake. The Loma Negra cone is older than the Lagunitas one considering that the Lagunitas lava flow is deflected by the Loma Negra cone and lava. The Loma Negra cone formed a lava flow 1.7 kilometres (1.1 mi) long. A
147:
falls and forms a 2.5 kilometres (1.6 mi) long lava flow which after 1.5 kilometres (0.93 mi) splits into two branches. The presence of levees in the flow indicates that the flow rate diminished during the eruption. Lagunitas volcano conversely is a 150 metres (490 ft) high
96:
is formed by the dehydration of the descending slab of oceanic lithosphere, the origin of volcanism beneath the main volcanic arc is unclear. One of these volcanic structures is the
Payenia volcanic field between 34°30′–38°S southern latitude; it was probably formed by magmas generated by
124:
volcanic rocks. Activity is controlled by tectonic extension 70 kilometres (43 mi) west of the Andes and has sent lava flows which reach the Rio Salado. The
Infiernillo is part of a transitory region of the Southern Volcanic Zone between the northern and central segment thereof.
243:
Folguera, Andrés; Naranjo, José A.; Orihashi, Yuji; Sumino, Hirochika; Nagao, Keisuke; Polanco, Edmundo; Ramos, Victor A. (October 2009). "Retroarc volcanism in the northern San Rafael Block (34°–35°30′S), southern
Central Andes: Occurrence, age, and tectonic setting".
156:
explosion at its margins formed the Nina
Encantada lake. Hoyo Colorado is a cone which generated a complex lava field damming the Salado river. Hoyo Colorado has erupted approximately twice as much rock as the other three centres.
284:
Gudnason, JĂłnas; Holm, Paul Martin; Søager, Nina; LlambĂas, Eduardo J. (August 2012). "Geochronology of the late
Pliocene to recent volcanic activity in the Payenia back-arc volcanic province, Mendoza Argentina".
136:
dating, while ages of 69,000 ± 50,000 and 34,000 ± 70,000 have been obtained on the other two centres, respectively. The oldest age in the field is 0.83 ± 0.11
140:; other dates found are less than 100,000-200,000 years old. These other volcanoes are located around Niña Encantada lake and include Mesillas and Lagunita.
362:"EvoluciĂłn morfolĂłgica y morfomĂ©trica de los conos volcánicos monogenĂ©ticos de los campos volcánicos de PayĂşn MatrĂş, Llancanelo y Cuenca del RĂo Salado"
101:
overriding a steepening subducting Nazca Plate. This province, with a surface area of 60,000 square kilometres (23,000 sq mi), includes
29:
393:
403:
398:
224:
106:
229:
69:
330:
80:
Volcanic activity in the Andes and the region between the Andes and the
Atlantic Ocean is caused by the
128:
There are three vents named Hoyo
Colorado, La Hoyada and Loma Negra. The first vent erupted 6890 ± 40
89:
188:
331:"Late Quaternary monogenetic volcanoes along Rio Salado, Southwest Mendoza Province, Argentina"
369:
161:
143:
Hoyada volcano is a crater with a diameter of 450 metres (1,480 ft). It is surrounded by
302:
294:
261:
253:
184:
169:
361:
17:
61:
387:
257:
192:
149:
98:
93:
298:
176:
133:
102:
85:
219:
165:
137:
117:
81:
373:
44:
31:
180:
153:
121:
113:
65:
307:
266:
172:
144:
191:
contents are transitional between
Planchon-Peteroa and Patagonia
72:, has formed three individual vents with associated lava flows.
129:
179:. Hoyo Colorado is much more olivine-rich and contains
68:, at the Rio Salado. The volcanic field, part of the
183:. Major element analyses indicate similarity to the
360:Blazek, González; Lourdes, Verónica (2017-06-01).
279:
277:
329:Naranjo, J.A.; Lara, L.E.; Mazzoni, M.M. (1997).
324:
322:
320:
318:
64:in Argentina. The field is located northwest of
246:Journal of Volcanology and Geothermal Research
8:
187:volcanic centre at the same latitude. The
306:
265:
287:Journal of South American Earth Sciences
112:The basement in the area is formed from
204:
214:
212:
210:
208:
7:
160:The first three cones all erupted
25:
258:10.1016/j.jvolgeores.2009.06.012
366:BoletĂn de Estudios Geográficos
1:
299:10.1016/j.jsames.2012.02.003
18:Salado Basin volcanic field
420:
368:(in Spanish) (107): 102.
107:Llancanelo volcanic field
335:Acta Geológica Hispánica
225:Global Volcanism Program
230:Smithsonian Institution
394:Volcanoes of Argentina
120:sedimentary rocks and
70:Southern Volcanic Zone
90:South American Plate
41: /
404:Holocene volcanoes
189:rare-earth element
162:basaltic andesite
92:. While the main
16:(Redirected from
411:
378:
377:
357:
351:
350:
348:
346:
326:
313:
312:
310:
281:
272:
271:
269:
252:(3–4): 169–185.
240:
234:
233:
216:
185:Planchon-Peteroa
56:
55:
53:
52:
51:
46:
45:35.142°S 69.83°W
42:
39:
38:
37:
34:
21:
419:
418:
414:
413:
412:
410:
409:
408:
399:Volcanic fields
384:
383:
382:
381:
359:
358:
354:
344:
342:
328:
327:
316:
283:
282:
275:
242:
241:
237:
218:
217:
206:
201:
78:
50:-35.142; -69.83
49:
47:
43:
40:
35:
32:
30:
28:
27:
23:
22:
15:
12:
11:
5:
417:
415:
407:
406:
401:
396:
386:
385:
380:
379:
352:
341:(1–2): 113–122
314:
273:
235:
203:
202:
200:
197:
77:
74:
62:volcanic field
24:
14:
13:
10:
9:
6:
4:
3:
2:
416:
405:
402:
400:
397:
395:
392:
391:
389:
375:
371:
367:
363:
356:
353:
340:
336:
332:
325:
323:
321:
319:
315:
309:
304:
300:
296:
292:
288:
280:
278:
274:
268:
263:
259:
255:
251:
247:
239:
236:
231:
227:
226:
221:
220:"Infiernillo"
215:
213:
211:
209:
205:
198:
196:
194:
193:alkali basalt
190:
186:
182:
178:
174:
171:
167:
163:
158:
155:
151:
150:stratovolcano
146:
141:
139:
135:
131:
126:
123:
119:
115:
110:
108:
104:
100:
99:asthenosphere
95:
91:
87:
83:
75:
73:
71:
67:
63:
59:
54:
19:
365:
355:
343:. Retrieved
338:
334:
290:
286:
249:
245:
238:
223:
195:signatures.
159:
142:
132:as found by
127:
111:
94:volcanic arc
88:beneath the
79:
57:
26:
308:11336/79165
293:: 191–201.
267:11336/92712
177:plagioclase
164:containing
134:radiocarbon
103:PayĂşn MatrĂş
86:Nazca Plate
58:Infiernillo
48: /
388:Categories
199:References
166:hornblende
118:Cretaceous
82:subduction
36:69°49′48″W
33:35°08′31″S
374:0374-6186
181:amphibole
76:Formation
154:phreatic
122:Tertiary
114:Jurassic
66:Malargue
173:olivine
84:of the
372:
345:29 May
170:matrix
145:tephra
60:is a
370:ISSN
347:2016
175:and
168:and
105:and
303:hdl
295:doi
262:hdl
254:doi
250:186
138:mya
130:BCE
390::
364:.
339:32
337:.
333:.
317:^
301:.
291:37
289:.
276:^
260:.
248:.
228:.
222:.
207:^
109:.
376:.
349:.
311:.
305::
297::
270:.
264::
256::
232:.
116:-
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.