KOPRI Repository

Preliminary Results of Heat flow Measurements across the Eastern Flank of the Adare Trough, Antarctica

Metadata Downloads
Title
Preliminary Results of Heat flow Measurements across the Eastern Flank of the Adare Trough, Antarctica
Authors
Kim, Young-Gyun
Hong, Jong Kuk
Jin, Young Keun
Keywords
Adare Trough; Marine heat flow; Thermal structure; Antarctica
Issue Date
2015
Citation
Kim, Young-Gyun, Hong, Jong Kuk, Jin, Young Keun. 2015. Preliminary Results of Heat flow Measurements across the Eastern Flank of the Adare Trough, Antarctica. AGU Fall meeting. San Francisco. 2015.12.14.-18.
Abstract
Marine heat flow measurement on the ridge is a direct and useful approach to know the current state of thermal regime below the lithosphere. Measurements in ridges located in the Antarctica are practically challenged by harsh conditions such as extensive and moving sea ice cover and stiff seafloor composed of diatomaceous sediments. We planned heat flow measurements across the Adare Trough, north of the Ross Sea, during the recent Korean icebreaker R/V Araon’s Antarctic expedition (ANA05B; Dec 12th 2014-Feb 25th 2015) to get thermal information which is a missing piece in terms of geophysical data in this region to describe its asymmetric activity in spreading rate. Finally, we collected information only at three stations across the eastern flank of the Adare Trough over 70 km along with NBP9702 seismic line because of various limitations above. It is a preliminary result that observed heat flow seems significantly higher than estimated one from known magnetic anomaly age using a global age-heat flow curve. In order to conclude some suggestion, we need further studies regarding identification of ‘real’ heat flow from lithosphere, and increase of the number of data. More heat flow measurements will be carried out again on the eastern flank in the next Araon’s Antarctic expedition (tentatively ANA06C; March 2016) to supplement the small number of data.
URI
https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/71680
Conference Name
AGU Fall meeting
Conference Place
San Francisco
Conference Date
2015.12.14.-18
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse