News

Mareike Schmidt et al. paper published in Journal of Asian Earth Sciences

March 18, 2016

Congratulations to Mareike Schmidt, our BHAP PhD student at Freie Universitaet Berlin, on the publication of her first paper as first author in Journal of Asian Earth Science!

Congratulations also to co-authors, and BHAP colleagues, Dr. Pavel Tarasov, Mareike's supervisor, and Christian Leipe.

Title: "Diatoms from Lake Kushu: A pilot study to test the potential of a Late Quaternary palaeoenvironmental archive from Rebun Island (Hokkaido Region, Japan)" in Journal of Asian Earth Sciences 122 (2016) 106-122.

Authors: Mareike Schmidt, Pavel E. Tarasov, Philipp Hoelzmann, Hanno Meyer and  Christian Leipe.

Download pdf of paper here

Link to paper: http://www.sciencedirect.com/science/article/pii/S1367912016300402

Abstract: Rebun Island is a key research area for the Baikal-Hokkaido Archaeology Project to better understand the dynamics of the Neolithic hunter-gatherers in the NW Pacific region. Hence, the ca. 19.5 m sediment core RK12 spanning the last ca. 16.6 cal. kyr BP was obtained from Lake Kushu. Our aim is to test its potential as a high-resolution multi-proxy archive. Here, we used diatoms to investigate the modern ecosystem of Lake Kushu and its surrounding area on Rebun Island and of Hime-numa Pond on Rishiri Island and selected core samples for comparison. Modern diatom and stable isotope analyses show well-mixed freshwater bodies with eutrophic, alkaline conditions. The fossil diatom and geochemical sediment analyses display three phases that represent major changes in the lake development: (i) a marshy phase (ca. 16.6-10 cal. kyr BP); (ii) a brackish water lagoon phase (ca. 10-6.6 cal. kyr BP); and (iii) a freshwater lake phase (since ca. 6.6 cal. kyr BP). This shows the major role of the post-glacial climate amelioration, global sea-level rise and marine transgression in the development of this landscape. Further analyses will provide a palaeolimnological record at (sub-)decadal resolution that will facilitate the interpretation of the hunter-gatherer dynamics.
 2016 Elsevier Ltd. All rights reserved.

Congratulations to Ms. Schmidt and all the authors!

News Archive


2017

2016

January

February

March

April

May

June

July

September

October

November

December

2015

January

February

March

April

May

June

July

August

September

October

November

December

2014

January

February

March

April

May

July

August

September

October

November

December

2013

January

February

March

April

May

June

July

August

October

November

December

2012

January

February

March

April

May

June

July

August

October

November

December

2011

Bakail Hokkaido archaeology project