Asset Details
Do you wish to reserve the book?
Calibration of seawater temperature and delta super(18)O sub(seawater) signals in Tridacna maxima's delta super(18)O sub(shell) record based on in situ data
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Calibration of seawater temperature and delta super(18)O sub(seawater) signals in Tridacna maxima's delta super(18)O sub(shell) record based on in situ data
Do you wish to request the book?
Calibration of seawater temperature and delta super(18)O sub(seawater) signals in Tridacna maxima's delta super(18)O sub(shell) record based on in situ data
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Calibration of seawater temperature and delta super(18)O sub(seawater) signals in Tridacna maxima's delta super(18)O sub(shell) record based on in situ data
2015
Overview
The giant clam Tridacna maxima presents a strong potential for paleoclimatic reconstructions but its use remains limited by the fact that the relationship between the shell stable oxygen isotopes ratio ( delta super(18)O sub(shell)), the sea surface temperature (SST), and the stable oxygen isotopes ratio of seawater ( delta super(18)O sub(sw)) has not been calibrated yet. In this study, a T. maxima specimen was stained with calcein and grown in a tank for 1.5 yr. The tank seawater was monitored weekly for sea surface salinity, and the stable oxygen isotopes ratio of seawater ( delta super(18)O sub(sw)) and SST was recorded hourly. Microscopic observations of outer shell layer thin sections revealed micrometric, simple and complex, growth increments. The staining experiment demonstrated that these growth increments were deposited on a daily basis. The weekly delta super(18)O sub(shell) record showed that the shell was precipitated in isotopic equilibrium with seawater and that 63 % of the ( delta super(18)O sub(shell) - delta super(18)O sub(sw)) variations were explained by SST variations. A conventional linear function (1) linking T. maxima high-resolution delta super(18)O sub(shell) record, in situ delta super(18)O sub(sw), and SST data was calculated as where SST is in degree Celsius and Delta delta super(18)O is the difference between the stable oxygen isotopes ratio of the shell and of the seawater ( delta super(18)O sub(shell) - delta super(18)O sub(sw)), in ppt VPDB. The root mean square error of the SST reconstructed by this equation is plus or minus 1.41 degree C revealing the potential of T. maxima for paleoclimatic studies. An average SST = f( delta super(18)O sub(shell) - delta super(18)O sub(sw)) equation for giant clam is proposed by compiling the equations from the present study and previous works.This equation permits one to obtain SST records from isotopic values of giant clams species that have not been calibrated yet or from fossil giant species that do not have living modern conspecifics.
Subject
