Following the PETM, calcium carbonate began accumulating (shown by an increase in the calcium carbonate value) in core 1263C/D at ______ mcd and for 1262A at ______ mcd.a.306.0 ... 316.0b.335.3 ... 316.6c.334.7 ... 139.7d.334.7 ... 140.1What is the difference in sediment depth between the shallowest and deepest cores when calcium carbonate began accumulating after the PETM?a.195.0 mcdb.18.7 mcdc.194.6 mcdd.10.0 mcd Figure 12B-4 provides pictures of five of the cores collected during the cruise. Each core was taken from a progressively deeper site. The shallowest core was recoveredfrom 2717 m water depth and the deepest core from 4755 m. The core information does not show the entire sediment record for each core, rather it notes specific sectionsrelevant for the examination of the PETM. The depth within the core is notated as meters composite depth (mcd). For example, the top of core 1263C/D is 334 mcd. Thissection of the core was collected 334 meters below the sediment water interface. Conversely, the top of core 1262A is 138.4 mcd. It was collected 138.4 meters below thesediment water interface.1263C/D2717 m water depth3341265A3060 m water depth1266C3798 m water depth1267B4355 m water depth3051262A4755 m water depth230-335315-306139231-336-316-140-O 50 100CaCO, (wt%)30750 100CaCO, (wt%)232-50 100CaCO, (wt%)50 100CaCO, (wt%)50 100CaCO, (wr%)Figure 12B-4. Photographs of five sediment cores collected during Leg 208. Depth is measured in meters composite depth (mcd). [Courtesy: Zachos et al., 2004]Depth (medi

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Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

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Following the PETM, calcium carbonate began accumulating (shown by an increase in the calcium carbonate value) in core 1263C/D at ______ mcd and for 1262A at ______ mcd.
a.306.0 ... 316.0
b.335.3 ... 316.6
c.334.7 ... 139.7
d.334.7 ... 140.1

What is the difference in sediment depth between the shallowest and deepest cores when calcium carbonate began accumulating after the PETM?
a.195.0 mcd
b.18.7 mcd
c.194.6 mcd
d.10.0 mcd