Laguna Volcanic Field

Laguna Volcanic Field
San Pablo Volcanic Field

Mount Makiling, the tallest volcano in the Laguna Volcanic Field[1]
Highest point
Elevation 1,090 m (3,580 ft) [1]
Coordinates 14°07′N 121°18′E / 14.12°N 121.30°E / 14.12; 121.30Coordinates: 14°07′N 121°18′E / 14.12°N 121.30°E / 14.12; 121.30
Geography
Laguna Volcanic Field

Location in the Philippines

Location Luzon, Philippines
Geology
Age of rock Quaternary
Mountain type Volcanic field
Volcanic arc/belt Macoloc Corridor
Last eruption 1350 ± 100 years

The Laguna Volcanic Field, also known as the San Pablo Volcanic Field, is a volcanic field in the Philippines, located between Laguna de Bay, Mount Banahaw volcano complex and Mount Malepunyo range. It is part of the larger Southwestern Luzon Volcanic Field (SWLVF).[2] From Manila, it is about 50 kilometres (31 mi) southeast to Mount Makiling, its most prominent volcanic feature.

The field is composed of over 200 dormant and monogenetic maars, crater lakes, scoria cones, and stratovolcanoes, the tallest of which is Mount Makiling at 1,090 m (3,580 ft) in elevation.[1][2] Many of the maars are aligned along a NE-SW trend. Three generations of maars are present, with the oldest being sediment-filled, like the ones found in Calauan. The youngest maars contain deep lakes with many concentrated in the city of San Pablo. The youngest maar, 1.2-kilometre (0.75 mi) wide Sampaloc Lake was formed about 500–700 years ago according to local legend, the last major activity in the volcanic field.[1]

Volcanism is still evident through the presence of geothermal areas like mud and hot springs.[1] The areas south of Mt. Makiling is the site of one of the earliest geothermal plants in the country.

Volcanic features

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) lists some of the maars and cones situated in the Laguna volcanic field. All are classified as inactive.[3]

Maars

Sampaloc Lake maar with (from L to R) Mounts Lagula, Nagcarlan and Atimba in the background. The slope to the right is the base of Mount Banahaw.

Cones

Named as hills
Named as mountains

See also

External links

References

  1. 1 2 3 4 5 "San Pablo Volcanic Field". Global Volcanism Program. Smithsonian Institution. Retrieved 2013-10-11..
  2. 1 2 Rene Juna R. Claveria, Teresita R. Perez, etc. "Petrographic Analysis of Rocks and Sediments around the Seven Lakes of San Pablo, Laguna: Implications Regarding Sulfate Distribution and Provenance". Department of Environmental Science, Ateneo de Manila University. Retrieved 2013-10-11.
  3. ↑ "Inactive Volcanoes - Part 1". Philippine Institute of Volcanology and Seismology. Retrieved on 2013-10-13.
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