AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
You are here: Home > Samples > FC-109

Sample ID:FC-109
Station ID:FC-109
Date Sampled:2000-07-18
Sample Type 1:Other
Text Description:
Lava ramps up on the N side of the hill a bit, but no stratigraphy |b| lava and capping maar. Mar has a coarse breccia at base w/ large (8cm) "juvenile" clasts. At top, it is very lapilli rich and also shows cross-bedding. It is possible that maar surge overran this hill (ld cinder cone?) and valley fill is covered by younger lava flow. ??? Maar stuff seems to have 3 layers, 1.5 m fine , laminated, lapilli rich, cross bedded at top, 3.0 m coarser breccia, larger clasts, greyish color, then 1.5 m of coarse basal breccia (tan colored) at base. N/A

Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes


Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/samples/sample_info.php
Page modified: August 1, 2017 15:29
Contact Information: AVO Web Team

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

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.