Registered 中文|English
Home Data directory Data search Data released Membership center Special services About us
  Time: 8:30-16:30
CCR Wisconsin-Madison
China Meteorological Dat
Climate Modeling (IEECAS
Paleoclimatology Data (N
World Data System
Earth Data Sharing (Chin
Detailed metadata
Grain size record from Zhaojiachuan profile over the past 7Ma in Qingyang, Gansu
CTR :260
Key words Zhaojiachuan profile in Gansu province, grain size, over the past 7Ma
Relevant data Sun Youbin& An Zhisheng. Variation of the East Asian Winter Monsoon Recorded by Chinese Loess during the Last Four Glacial-Interglacial Cycles.
Data shows that
samples were taken from 152~234.2m and interval is 20cm. Sample preparation:1) about 1.5g of soil sample was treated with 10ml 10 %H2O2 ;2) boiled with 10ml 10% HCL;3) the samples were rinsed with distilled water;4) the samples were evenly messed with 10ml 0.05N Na2P2O7 . grain size were measured with ANALYSETTE-22 LASER PARTICLE SIZE ANALYZER with a precision of ±2%.
Data collection format xls
Data classification Geological record - Terrestrial environmental records
Data source
personal contact
Related to download [Download attachments]
Contact card
Full name: 
Tibet Email: yanlibin@ieecas.cn
Unit: Institute of Earth Environment Phone: 02962336215
Related data
Tree-ring chronologies in
Clay mineralogical and ge
Bittoo Cave, India compos
High-resolution peat reco
Oxygen isotope compositio
Red Clay to loess-palaeos
Variation of Zr/Rb ratios
Geochemical evidence for
Assemblage characteristic
Geochemical and magnetic
Home Data directory Data search Data released Membership center Special services About us
All rights reserved: east Asia ancient environmental science database
Contact phone: 029-62336215 E - mail: yanlibin@ieecas.cn fax: 029-62336215 technical support: state in the network
Disclaimer: this website content may be reproduced without written authorization and mirrors