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Clark Seamount

Clark

Stratovolcano · New Zealand · 860m (submarine)

Diffuse hydrothermal venting and sulfide chimneys were observed near the summit of Clark volcano during a New Zealand-American NOAA Vents Program expedition in 2005. Hot water (221°C, 430°F) was sampled at the base of this sulfide chimney, which is almost 6 m high. Clark submarine volcano lies near the lower end of the Southern Kermadec Arc and is the southernmost volcano of the submarine chain that displays known hydrothermal activity.
Diffuse hydrothermal venting and sulfide chimneys were observed near the summit of Clark volcano during a New Zealand-American NOAA Vents Program expedition in 2005. Hot water (221°C, 430°F) was sampled at the base of this sulfide chimney, which is almost 6 m high. Clark submarine volcano lies near the lower end of the Southern Kermadec Arc and is the southernmost volcano of the submarine chain that displays known hydrothermal activity. · Photo: Image courtesy of New Zealand-American Submarine Ring of Fire 2005 Exploration, NOAA Vents Program.
Type
Stratovolcano
Country
New Zealand
Region
Tonga-Kermadec Volcanic Regions / Southern Kermadec Volcanic Arc
Elevation
860m (submarine)
Coordinates
-36.446, 177.839
Last eruption
Unknown
Tectonic setting
Subduction zone / Oceanic crust (< 15 km)
Landform
Composite
Major rock type
Basalt / Picro-Basalt
Geological summary

The submarine Clark stratovolcano lies near the southern end of the Southern Kermadec arc. This basaltic and dacitic edifice consists of a basal substrate of massive lava flows, pillow lavas, and pillow tubes overlain by volcaniclastic sediments. Craters are present along the complex crest. Clark is the southernmost volcano of the submarine chain that displays hydrothermal activity. Diffuse hydrothermal venting and sulfide chimneys were observed near the summit during a New Zealand-American NOAA Vents Program expedition in 2006.

From Wikipedia

Clark is a dormant submarine volcano located off the northern coast of New Zealand and is one of the South Kermadec Ridge Seamounts.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Detailed timeline

No eruption records available.

External links

⚠ For reference only. Not for emergency response.