AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
About Alaska's Volcanoes | Hazards from Alaska's Volcanoes | Map & Alphabetical List | Interactive Map | Eruption Search | Volcano Search 
You are here: Home > Volcano Information

Seguam reported activity

SEGUAM LINKS

SAMPLES
EVENT SPECIFIC INFORMATION

Event Name : Seguam 7500 yBP

Start: 7500 (± 2000 Years) Years BP Ar/Ar

Lava flow: BibCard
Eruption Type:Effusive
Other""

Description: From Jicha and Singer (2006): "An older, tundra-covered 0.08 km cubed rhyolite flow (rcv) crops out to the west of the rcc cone. This plagioclase-phyric lava dips 20 degrees to the northwest and is strongly flow banded with alternating layers of red rubble and black, glassy rhyolite. Three incremental-heating experiments from the glassy rhyolite yielded a weighted mean plateau age of 7.5+/-2.0 ka (Table 1; Fig. 5 [in original text])."

Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/volcanoes/activity.php
Page modified: March 30, 2017 14:36
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS