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Author Topic:   Peanut Gallery for Great debate: radiocarbon dating, Mindspawn and Coyote/RAZD
Posts: 8948
From: Canada
Joined: 04-04-2003
Member Rating: 6.9

Message 71 of 305 (711240)
11-16-2013 9:27 AM
Reply to: Message 69 by Percy
11-16-2013 8:01 AM

Millennium Eruption of Tianchi Volcano

Tianchi volcano, is a huge stratavolcano located on the border of NE China and North Korea The Millennium
eruption of Tianchi volcnao, erupted at somewhat AD 1000, is one of the world biggest eruptions in the last
2000 years. Historical documents reveal that the last eruption may occurred in about 300 years ago(AD1668
and AD1702). Activity of this volcano is monitored by all modern methods. Potential eruptions of this world most
dangerous volcano attract attentions from both the public and the scientific. However, better understanding of the
historical eruptions of Tianchi volcano will help us to learn more about the future activity. Here we report our recent
studies on major historical eruptions of Tianchi volcano.

And from:
"Identification and correlation of visible tephras in the Lake Suigetsu SG06
sedimentary archive, Japan: chronostratigraphic markers for synchronising
of east Asian/west Pacific palaeoclimatic records across the last 150 ka"

Which I was able to sign up for free and download.

In the 2nd paper:
Tianchi/Baitoushan Millennium eruption
of Tianchi Volcano
B-Tm 50 E 0.921 e0.941 e 950 NW 1,8
The 0.921-0.941 is a range of calibrated C14 dates for this layer.
These are taken from:
"Utilising the large number of radiocarbon measurements (n > 600) from terrestrial
plant macrofossils in the Lake Suigetsu SG06 record, we are able to provide precise and accurate
ages for the tephras from eruptions within the last 50 ka."

And since those dates are matched to the varves this gives a known historic eruption with a layer in the right place in lake Suigetsu.

This message is a reply to:
 Message 69 by Percy, posted 11-16-2013 8:01 AM Percy has acknowledged this reply

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