4. Data Report: Utilizing Color Reflectance Analysis as a Carbonate Concentration Proxy1

Lynn D. Millwood,2 D.L. Hawkins, Jr.,3 and Shana M. Wells2

INTRODUCTION

Color reflectance data (400-700 nm) are routinely collected aboard the JOIDES Resolution and have been used to estimate the carbonate concentration in sediments (Balsam et al., 1997; Mix et al., 1995). A good summary of the recent usage of color reflectance data to estimate fractions of various minerals is published in Balsam et al. (1999).

The purpose of this paper is to present models estimating the carbonate fraction for each site cored during Leg 181. These models ("Appendix A") were constructed using data collected aboard ship during Leg 181 (hereafter referred to as "shipboard data") and supplementary data collected at the Ocean Drilling Program Gulf Coast Repository (ODP GCR) after the cruise (hereafter referred to as "laboratory data"). Each model is contained in a separate table and includes predicted carbonate fractions with corresponding depth values in meters composite depth (mcd) (Carter, McCave, Richter, Carter, et al., 1999). Graphic depictions for each model are included in "Appendix B."

1Millwood, L.D., Hawkins, D.L., Jr., Wells, S.M., 2002. Data report: Utilizing color reflectance analysis as a carbonate concentration proxy. In Richter, C. (Ed.), Proc. ODP, Sci. Results, 181 [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/181_SR/208/208.htm>. [Cited YYYY-MM-DD]

2Department of Geology, University of Texas at Arlington, PO Box 19049, Arlington TX 76019, USA. Correspondence author: ldm8510@omega.uta.edu

3Department of Mathematics, University of Texas at Arlington, PO Box 19408, Arlington TX 76019, USA.

Initial receipt: 5 December 2001
Acceptance: 5 March 2002
Web publication: 3 December 2002
Ms 181SR-208

NEXT