September 2015 - Avoemails - list.avo.alaska.edu

[Public Email] Imuruk Lake/ Lava Lake
by nick.treinen＠gmail.com 12 Sep '15

12 Sep '15

--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: Nick Treinen Email Address: nick.treinen(a)gmail.com Subject: Imuruk Lake/ Lava Lake Message: Just wanted to point out that Imuruk Lake is mislabeled on the map. What is labeled as Imuruk Lake is actually Lava Lake. Imuruk Lake is the larger lake 20 miles to the East of Lava Lake. The lava field extends between the two. https://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Imuruk+Lake ---------------------------------------------------------------- REMOTE IP ADDRESS: 137.229.227.166 USER AGENT/BROWSER: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36 REFERRING PAGE: https://www.avo.alaska.edu/contact.php

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Re: Ages of Volcanoes
by cheryl.cameron＠alaska.gov 10 Sep '15

10 Sep '15

Hello again Alex - Game McGimsey, a long-time geologist with AVO, confirms for me that Bona is not a volcano. (I remembered deleting Bona from our list some time ago, but not why). Thank you, Cheryl -------- Alex Gimarc wrote: Howdy - Do you guys have an estimate of ages of Hayes Volcano north of Mount Spurr and Mount Bona - Cleveland? Given the Bona - Cleveland volcano is associated with the Wrangell volcano field, I am guessing it is in the range of 5 million years or so, but can't find anything with an actual number / estimate. I cannot find anything about Hayes, but given its proximity to Spurr, I would guess that it is around the same age. Thanks for any suggestions. Cheers - -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050

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[Public Email] eruption alerts
by iam_yahweh＠yahoo.com 10 Sep '15

10 Sep '15

--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: David Almeida Email Address: iam_yahweh(a)yahoo.com Subject: eruption alerts Message: Thank's for listimg on c.v.o. Web site hazzzards assesment a eruoption for multiple eruoptions in washington and oregon. The idaho and montana rockies have also at least 8 volcano's sub blastng. A magma river sourced near cda I'd is present bustng ground under great falls mt. How do I find usgs coverage for idaho and montana volcanos in whichparadise has a super volcano 3/4 opening. ---------------------------------------------------------------- REMOTE IP ADDRESS: 127.0.0.1 USER AGENT/BROWSER: Mozilla/5.0 (BlackBerry; U; BlackBerry 9900; en-US) AppleWebKit/534.11+ (KHTML, like Gecko) Version/7.1.0.694 Mobile Safari/534.11+ REFERRING PAGE: http://www.avo.alaska.edu/contact.php

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Re: Ages of Volcanoes
by cheryl.cameron＠alaska.gov 10 Sep '15

10 Sep '15

Hello Alex. Hayes -- see this recent publication: https://www.avo.alaska.edu/pdfs/cit9161.pdf Hayes has some well described tephra deposits at about 3700 ybp, and a tephra layer possibly as young as 500-1000 ybp. Bona-Churchill (Cleveland is in the Aleutians, far away): Mt. Churchill is the source of the widely-distributed and important marker bed White River Ash. (A.D. 150 and 500 and A.D. 803 or 1147 cal. yr B.P.) There is quite a lot in the scientific literature on the White River Ash - see Churchill's bibliography here: https://www.avo.alaska.edu/volcanoes/volcbib.php?volcname=Churchill,%20Mt Mt. Churchill is an exception to the general pattern of older ages in the Wrangells as you move east. We know less about Bona, and it is largely ice-covered. Thank you, Cheryl -------- Alex Gimarc wrote: Howdy - Do you guys have an estimate of ages of Hayes Volcano north of Mount Spurr and Mount Bona - Cleveland? Given the Bona - Cleveland volcano is associated with the Wrangell volcano field, I am guessing it is in the range of 5 million years or so, but can't find anything with an actual number / estimate. I cannot find anything about Hayes, but given its proximity to Spurr, I would guess that it is around the same age. Thanks for any suggestions. Cheers - -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050

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[Public Email] Ages of Volcanoes
by agimarc＠ak.net 10 Sep '15

10 Sep '15

--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: Alex Gimarc Email Address: agimarc(a)ak.net Subject: Ages of Volcanoes Message: Howdy - Do you guys have an estimate of ages of Hayes Volcano north of Mount Spurr and Mount Bona - Cleveland? Given the Bona - Cleveland volcano is associated with the Wrangell volcano field, I am guessing it is in the range of 5 million years or so, but can't find anything with an actual number / estimate. I cannot find anything about Hayes, but given its proximity to Spurr, I would guess that it is around the same age. Thanks for any suggestions. Cheers - ---------------------------------------------------------------- REMOTE IP ADDRESS: 127.0.0.1 USER AGENT/BROWSER: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0 REFERRING PAGE: http://www.avo.alaska.edu/contact.php

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