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Table 2 Results of the high-resolution stable isotope (δ13C, δ18O) analyses of three oysters with a late Toarcian age

From: First steps in reconstructing Early Jurassic sea water temperatures in the Andean Basin of northern Chile based on stable isotope analyses of oyster and brachiopod shells

Sample no.δ13C (‰ VPDB)δ18O (‰ VPDB)T (°C)a
Gryphaea sp. (CH18-006; late Toarcian; Bed 6-10)
 CH18-6-12.43-3.1025.3
 CH18-6-22.51-3.2425.9
 CH18-6-32.37-3.1225.4
 CH18-6-42.45-3.1525.5
 CH18-6-53.09-2.3721.9
 CH18-6-62.98-2.5222.6
 CH18-6-72.38-2.7423.6
 CH18-6-81.96-3.8128.7
 CH18-6-92.01-4.3831.5
 CH18-6-102.23-3.6127.7
 CH18-6-112.14-3.7228.2
 CH18-6-122.06-3.7328.3
 CH18-6-131.97-4.1430.3
 CH18-6-142.59-3.3326.4
 CH18-6-152.40-4.0329.7
 CH18-6-162.06-3.3326.4
 CH18-6-171.67-4.8133.6
 CH18-6-181.68-4.9234.2
 CH18-6-191.57-5.0334.8
 CH18-6-201.60-5.2435.9
 CH18-6-211.48-5.2335.8
Gryphaea sp. (CH18-017; late Toarcian; Bed 5-7)
 CH18-17-12.99-2.8624.1
 CH18-17-22.73-2.6823.3
 CH18-17-32.86-2.7223.5
 CH18-17-42.82-2.7823.8
 CH18-17-53.04-2.4722.4
 CH18-17-62.98-2.6323.1
 CH18-17-73.15-2.7523.7
 CH18-17-83.03-2.8724.2
 CH18-17-92.91-3.1325.4
 CH18-17-102.88-2.8324.0
 CH18-17-112.60-2.6323.1
 CH18-17-122.40-2.8824.3
 CH18-17-132.61-2.9724.6
 CH18-17-142.57-3.1825.6
 CH18-17-152.65-2.7623.7
 CH18-17-162.76-2.9124.4
Gryphaea sp. (CH18-030; late Toarcian; Bed 4-1)
 CH18-30-12.17-2.1921.1
 CH18-30-22.30-2.5422.7
 CH18-30-32.15-2.3321.7
 CH18-30-42.22-2.2221.2
 CH18-30-52.18-2.0120.3
 CH18-30-62.02-2.3821.9
 CH18-30-72.42-2.0720.6
 CH18-30-82.10-2.4722.4
 CH18-30-92.10-2.4122.1
 CH18-30-102.02-2.5122.5
 CH18-30-112.03-2.1821.1
 CH18-30-121.96-2.2421.3
 CH18-30-132.02-1.8819.7
 CH18-30-141.80-2.1921.1
 CH18-30-152.04-2.5622.8
 CH18-30-161.83-2.1320.8
 CH18-30-171.89-2.3721.9
  1. aTemperatures are calculated with the equation of Anderson and Arthur (1983) and a δ18O value of -1‰ VSMOW for seawater during shell formation (Shackleton and Kennett 1975)