【來訪單位 Institution】：CAS Institute for Earth Environment, Xi'an，China    
【邀請人 Host】：Pinghe Cai      【聯絡人 Contact】：Jingyan Chen

Speaker: Dr. GEORGE S. BURR

October 2015 to present (3 months/year),  Acting Vice Director - Xi'an Accelerator Mass Spectrometry Laboratory, CAS Institute for Earth Environment, Xi'an, China

1993 Ph.D., University of Chicago

George Burr: 
Research Scientist at the Xi'an AMS Facility, Institute for Earth Environment, Xi'an, China. Visiting Professor at National Sun Yat-sen University, Department of Oceanography, Kaohsiung, Taiwan. Dr. Burr received his Ph.D. in Geophysical Sciences from the University of Chicago (1993). He has served as an Associate Editor for the Journal Radiocarbon since 1999 and a Fulbright Scholar (2006-2007). Dr. Burr is a specialist in Geoscience and Archaeological applications of Accelerator Mass Spectrometry using ¹⁴C, ¹⁰Be and ¹²⁹I.

Abstract:

¹²⁹I is an anthropogenic isotope currently produced during nuclear fuels reprocessing, and formerly during above-ground nuclear testing. ¹²⁹I is concentrated in the marine environment with known point sources in Europe. Since about 1990 the amount of ¹²⁹I is surface waters of the world oceans has increased by more than two orders of magnitude. This influx of ¹²⁹I has been widely studied in a variety of marine archives, including seawater, seaweed and corals. This talk will review studies using ¹²⁹I as a marine tracer and will focus on coral records from the South China Sea. These record the first influx of anthropogenic ¹²⁹I in the 1950s and early 1960s.

--------------------------------------------------------------------------

* 11:40開始提供簡易午餐，12:00開始講座。老師同學們取餐后可以直接到會議室用餐，等待聆聽報告（可以邊吃邊聽）。

* 請老師同學們訪問MEL網頁（http://mel.xmu.edu.cn/lecture.asp?id=1），在本次午餐會的“報名”一欄填寫信息并提交。

* 本講座將發布當天僅開放給科研人員、技術人員、博士后、訪問學者等教師優先報名，第二天起開放給全體師生報名。學生應在規定時間內報名，如提前以教師的名義報名，將導致報名無效。

* 本周五下午4點為截止報名時間，總報名人數限制在100名以內。如未及時報上名，可于12:00直接到場聽報告。如已報名但因事不能參加，也請在周五下午4點前告知。

* 午餐會一如既往地歡迎大家的關注，如有興趣做講座的老師請與我聯系。