Early Cretaceous Tethys Major-Element Data: Readme file
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               World Data Center A- Paleoclimatology
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NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THESE DATA!!!!!

NAME OF DATA SET: Early Cretaceous Tethys Major-Element Data
LAST UPDATE: 2/1999 (Original Receipt by WDCA Paleo)  
CONTRIBUTOR: Dr. Ulrich G. Wortmann 

IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 1999-009
SUGGESTED DATA CITATION: Wortmann, U.G., 1999, 
Early Cretaceous Tethys Major-element Data,  
IGBP PAGES/World Data Center-A for Paleoclimatology 
Data Contribution Series # 1999-009. 
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

ORIGINAL REFERENCES: Wortmann, U.G., R. Hesse, and W. Zacher, 1999,
Major-element data from cyclic black shales and their paleoceanographic 
implications for the early Cretaceous deep western Tethys,
Paleoceanography, Vol. 14, Nr. 4 Pages 525-541.

FUNDING SOURCES: German Science Foundation, Germany.   
                        
GEOGRAPHIC REGION: Western Tethys Sea (Bavarian Alps, south Germany)
PERIOD OF RECORD:  Early Cretaceous, late Aptian, ~115 MMYrBP, approx duration 400~kyr
 
LIST OF FILES: Readme.wortmann1999.txt (this file), wortmann1999.data.txt 
(tab-delimited ASCII).

DESCRIPTION: 
Breitenbach-XRF-1994.
Major element XRF and Leco Data, all ratios are given as wt% ratios.
Latitude (Paleolatidude) 25N 
Longitude (Paleolongitude) unknown 
Bathymetry/elevation sub-CCD approx 5000 mbsl 

Variable names: Distance from base of section, 
Carbonate, Sulfur, Aluminium, Si/Al, P/Al, Ba/Al, 
Fe/Al, Ti/Al, Zr/Al, Na/Al, K/Al, Mg/Al, Ca/Al, Sr/Al, Mn/Al.
 
Variable units: cm, wt%, wt%, wt%, ratios.
 
Data precision: +-0.1cm, 2.7%, 3.1%, 0.8%, 1%, 3%, 4%, 
4.5%, 0.8%, 1.8%, 1.3%, 1.5%, 1.7%, 8.6%, 1.4%, 2.9%. 

Methods: XRF, Leco Chronostratigraphic information upper Aptian 
Date of data generation: 1994