Center for Meteorite Studies

Tagish Lake is a C2-ungrouped carbonaceous chondrite that fell in Canada in 2000. According to the Meteoritical Bulletin (MB 84), the Tagish Lake fall was preceded by a bright fireball visible in northern British Columbia and the southern Yukon, and loud explosions the morning of January 18th, 2000. The meteoroid detonated at an altitude of 30 to 50 km from Earth’s surface, and many of the resulting fragments landed on the frozen surface of Tagish Lake, British Columbia.

The meteorite’s spectacular entry was witnessed by several residents, and was also detected by seismographs, as well as satellites in Earth orbit.

The first frozen specimens, totaling approximately 1 kg, were recovered a week after the fall, and more pieces were located in late April and early May, bringing the total recovered mass to 10 kg. Many of the specimens recovered in the spring had melted into the ice of the lake, some of them over 20 cm (~ 8”) deep, and had to be cut out of the ice! They have been stored at temperatures below freezing.

Based on reconstruction of the meteoroid’s trajectory and orbit before impact, as well as spectroscopic and near-infrared photometric analyses, Tagish Lake is believed to be derived from a D-type asteroid, the most likely candidate being 773 Irmintraud.

 

Tagish_Lake_meteorite

http://upload.wikimedia.org/wikipedia/commons/1/17/Tagish_Lake_meteorite.jpg

A photo of the Tagish Lake fragments (GSC): http://cgc.rncan.gc.ca/meteor/images/tlm1.jpg

physorg.com story about Tagish Lake: http://www.physorg.com/news65190953.html

 

 


Category: Meteorites

Comments are closed.

Facebook
Twitter
YouTube

Sign Up for Center Updates!

Be the first to learn about CMS events and news; sign up for email updates here!


Postdoctoral Scholar Opportunities!

The Center for Meteorite Studies at Arizona State University invites applications for 2 Postdoctoral Research Associates.  Click here for details!




Meteorite of the Month

Sericho

September's Meteorite of the Month is Sericho, a pallasite found in Kenya in 2016. According to the Meteoritical Bulletin (MB 106, in prep): In 2016, two brothers were searching for …


Upcoming Events

September 2017
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
August 27, 2017 August 28, 2017 August 29, 2017 August 30, 2017 August 31, 2017

New Discoveries Lecture

New Discoveries Lecture
September 1, 2017 September 2, 2017
September 3, 2017 September 4, 2017 September 5, 2017 September 6, 2017

Ask a Curator Day - Sep 13

Ask a Curator Day - Sep 13

Earth and Space Open House

Earth and Space Open House
September 7, 2017 September 8, 2017 September 9, 2017
September 10, 2017 September 11, 2017 September 12, 2017 September 13, 2017 September 14, 2017 September 15, 2017 September 16, 2017
September 17, 2017 September 18, 2017 September 19, 2017 September 20, 2017 September 21, 2017 September 22, 2017 September 23, 2017
September 24, 2017 September 25, 2017 September 26, 2017 September 27, 2017 September 28, 2017 September 29, 2017 September 30, 2017