he acidification event associated with the PETM led to shoaling in the ______. a.lysocline b.calcium compensation depth c.pH d.Both b and c are correct. What role does calcium carbonate have on the chemistry of ocean water during the PETM? a.Calcium carbonate neutralized the acidification. b.Calcium carbonate accelerated the acidification. c.Calcium carbonate increased dissolution of silica shells. d.Both a and c are correct.
he acidification event associated with the PETM led to shoaling in the ______. a.lysocline b.calcium compensation depth c.pH d.Both b and c are correct. What role does calcium carbonate have on the chemistry of ocean water during the PETM? a.Calcium carbonate neutralized the acidification. b.Calcium carbonate accelerated the acidification. c.Calcium carbonate increased dissolution of silica shells. d.Both a and c are correct.
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
Section: Chapter Questions
Problem 1LR
Related questions
Question
The acidification event associated with the PETM led to shoaling in the ______.
a.lysocline
b.calcium compensation depth
c.pH
d.Both b and c are correct.
What role does calcium carbonate have on the chemistry of ocean water during the PETM?
a.Calcium carbonate neutralized the acidification.
b.Calcium carbonate accelerated the acidification.
c.Calcium carbonate increased dissolution of silica shells.
d.Both a and c are correct.
![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 recovered
from 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 sections
relevant 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. This
section 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 the
sediment water interface.
1263C/D
2717 m water depth
334
1265A
3060 m water depth
1266C
3798 m water depth
1267B
4355 m water depth
305
1262A
4755 m water depth
230-
335
315-
306
139
231-
336-
316-
140-
O 50 100
CaCO, (wt%)
307
50 100
CaCO, (wt%)
232-
50 100
CaCO, (wt%)
50 100
CaCO, (wt%)
50 100
CaCO, (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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4075dd7b-7cf0-4080-a9ab-c20ff4793850%2Fc0f72466-cd4a-4f64-aa88-2b98eba87580%2Fd2qx31q_processed.png&w=3840&q=75)
Transcribed Image Text: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 recovered
from 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 sections
relevant 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. This
section 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 the
sediment water interface.
1263C/D
2717 m water depth
334
1265A
3060 m water depth
1266C
3798 m water depth
1267B
4355 m water depth
305
1262A
4755 m water depth
230-
335
315-
306
139
231-
336-
316-
140-
O 50 100
CaCO, (wt%)
307
50 100
CaCO, (wt%)
232-
50 100
CaCO, (wt%)
50 100
CaCO, (wt%)
50 100
CaCO, (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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