Macizo de Larancagua
Encyclopedia
Macizo de Larancagua is a stratovolcano
in Bolivia
. It lies west of Turco
and is composed of andesite
and dacite
. The date of its last eruptive episode is unclear, but some authors have assigned it as Holocene
.
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...
in Bolivia
Bolivia
Bolivia officially known as Plurinational State of Bolivia , is a landlocked country in central South America. It is the poorest country in South America...
. It lies west of Turco
Turco (municipio)
Turco Municipality is the second municipal section of the Sajama Province in the Oruro Department in Bolivia. It was created on February 15, 1957. Its seat is Turco, situated 154 km west of Oruro at an altitude of 3,860 m. The municipality covers an area of 3,973 km², not taking into account the...
and is composed of andesite
Andesite
Andesite is an extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. In a general sense, it is the intermediate type between basalt and dacite. The mineral assemblage is typically dominated by plagioclase plus pyroxene and/or hornblende. Magnetite,...
and dacite
Dacite
Dacite is an igneous, volcanic rock. It has an aphanitic to porphyritic texture and is intermediate in composition between andesite and rhyolite. The relative proportions of feldspars and quartz in dacite, and in many other volcanic rocks, are illustrated in the QAPF diagram...
. The date of its last eruptive episode is unclear, but some authors have assigned it as Holocene
Holocene
The Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
.