Isotope Ratios in Marine Mollusk Shells after Prolonged Contact with Flowing Fresh Water

Science ◽  
1963 ◽  
Vol 142 (3600) ◽  
pp. 1666-1666
Author(s):  
J. N. Weber ◽  
A. La Rocque
Keyword(s):  
Fresh Water ◽  
Isotope Ratios ◽  
Marine Mollusk ◽  
Mollusk Shells ◽  
Prolonged Contact

Reconstructing El Ni?o-Southern Oscillation activity and ocean temperature seasonality from short-lived marine mollusk shells from Peru

2013 ◽  
Vol 371 ◽  
pp. 45-53 ◽  
Author(s):  
Matthieu Carr ◽  
Julian P. Sachs ◽  
Andrew J. Schauer ◽  
Walter Elliott Rodrguez ◽  
Fredy Cardenas Ramos
Keyword(s):  
Southern Oscillation ◽  
Ocean Temperature ◽  
Marine Mollusk ◽  
Mollusk Shells ◽  
Temperature Seasonality

scholarly journals What determines sclerobiont colonization on marine mollusk shells?

PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0184745 ◽  
Author(s):  
Vanessa Ochi Agostini ◽  
Matias do Nascimento Ritter ◽  
Alexandre José Macedo ◽  
Erik Muxagata ◽  
Fernando Erthal
Keyword(s):  
Marine Mollusk ◽  
Mollusk Shells

A new method for collection of nitrate from fresh water and the analysis of nitrogen and oxygen isotope ratios

2000 ◽  
Vol 228 (1-2) ◽  
pp. 22-36 ◽  
Author(s):  
S.R. Silva ◽  
C. Kendall ◽  
D.H. Wilkison ◽  
A.C. Ziegler ◽  
C.C.Y. Chang ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Fresh Water ◽  
Isotope Ratios ◽  
New Method ◽  
Oxygen Isotope Ratios

Lead levels in fresh water mollusk shells

1976 ◽  
Vol 11 (1) ◽  
pp. 65-78 ◽  
Author(s):  
James H. Clarke ◽  
Ann N. Clarke ◽  
David J. Wilson ◽  
James J. Friauf
Keyword(s):  
Fresh Water ◽  
Mollusk Shells ◽  
Lead Levels

Beads and pendants from the Hellenistic to Early Byzantine Red Sea port of Berenike, Egypt, Season 2014 and 2015

2018 ◽  
Vol 27 (1) ◽  
pp. 203-233 ◽  
Author(s):  
Joanna Then-Obłuska
Keyword(s):  
Red Sea ◽  
Glass Beads ◽  
Marine Mollusk ◽  
Mollusk Shells ◽  
Red Sea Coast ◽  
Rubbish Dump ◽  
Mosaic Glass ◽  
Sea Coast ◽  
Early Byzantine ◽  
Ostrich Eggshell

Almost 650 beads and pendants, most of them of glass and faience, were excavated over two seasons in 2014 and 2015 at Berenike on the Red Sea coast of Egypt. This material, coming from 19 trenches variously located within the Hellenistic to early Byzantine site, has contributed some new data, enhancing the Berenike bead typology. Highlights included a Bes pendant of glass from a Hellenistic context and early Roman mosaic glass beads with face patterns. Other materials of which the ornaments were made included marine mollusk shells, ostrich eggshell, and a variety of stone and minerals. Of greatest interest were beads coming from early Roman graves, of an older man (the order of the threaded beads could be traced) and of animals (neck collars). Beads threaded on fragments of string, most probably of Indo-Pacific make, came from the early Roman rubbish dump.

scholarly journals Marine Bivalve Feeding Strategies and Radiocarbon Ages in Northeast Atlantic Coastal Waters

Radiocarbon ◽  
2019 ◽  
Vol 62 (1) ◽  
pp. 107-125
Author(s):  
Elena Lo Giudice Cappelli ◽  
William E N Austin
Keyword(s):  
Feeding Strategies ◽  
Marine Bivalve ◽  
Ne Atlantic ◽  
Archaeological Investigation ◽  
Marine Mollusk ◽  
Mollusk Shells ◽  
Vital Effects ◽  
Local Ecology ◽  
Deposit Feeding ◽  
Atlantic Coastal

ABSTRACTMarine mollusk shells have been extensively used to provide radiocarbon (14C)-based chronologies in paleoenvironmental and archaeological studies, however uncertainties in age measurements are introduced because secondary factors such as vital effects and diet may influence 14C incorporation into these shells. Deep burrowing and deposit feeding mollusks, in particular, may incorporate “old” carbon resulting in apparently older ages than their contemporary environment. In this study, we present paired 14C and stable isotope (δ13C and δ18O) measurements for nine species of known-age bivalves having different feeding strategies and collected in six localities around the NE Atlantic. We exclude potential “old” carbon contamination in these known-age mollusk shells, acquire a better understanding of local ecology and provide an improved context for the environmental interpretation of 14C ages. Our results indicate that, in the NE Atlantic, marine mollusk-derived 14C ages provide a reliable basis for environmental and archaeological investigation, independently of vital effects and differences in microhabitats, feeding strategies and sample location—all of which are apparent from stable isotopes.

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