Citation:

dsdp.proc.78a.115.1984

Name: (Table 1) Occurrences of volcanic ash at DSDP Leg 78A Holes
Creator: James H Natland
Published: 1984
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Air-fall volcanic ash recovered at Deep Sea Drilling Project Sites 541, 542, and 543 on and east of the toe of the Barbados Ridge delineate middle and late Miocene, early Pliocene, and Pleistocene-Quaternary pulses of explosive volcanism in the Lesser Antilles arc. The ash beds at Site 541 allow precise correlation of intervals repeated by a probable reverse fault at this convergent margin.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Median Latitude: 15.596220 * Median Longitude: -58.692460 * South-bound Latitude: 15.517000 * West-bound Longitude: -58.728300 * North-bound Latitude: 15.712300 * East-bound Longitude: -58.653700

Date/Time Start: 1981-02-13T00:00:00 * Date/Time End: 1981-02-28T00:00:00

Minimum Elevation: -5633.0 m * Maximum Elevation: -4940.0 m

Event(s):

78-541 * Latitude: 15.520000 * Longitude: -58.728300 * Date/Time: 1981-02-13T00:00:00 * Elevation: -4940.0 m * Penetration: 459 m * Recovery: 400.6 m * Location: North Atlantic/RIDGE * Campaign: (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 459 m cored; 0 m drilled; 87.3 % recovery

78-542 * Latitude: 15.517000 * Longitude: -58.713300 * Date/Time: 1981-02-21T00:00:00 * Elevation: -5016.0 m * Penetration: 240 m * Recovery: 35.3 m * Location: North Atlantic/RIDGE * Campaign: (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 38 m cored; 0 m drilled; 93 % recovery

78-542A * Latitude: 15.519500 * Longitude: -58.713300 * Date/Time: 1981-02-21T00:00:00 * Elevation: -5016.0 m * Penetration: 325.5 m * Recovery: 73 m * Location: North Atlantic/RIDGE * Campaign: (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 95 m cored; 0 m drilled; 76.8 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	Sample code/label	Sample label		Natland, James H	DSDP/ODP/IODP sample designation
6	Sample code/label 2	Sample label 2		Natland, James H	DSDP/ODP/IODP sample designation
7	Sample comment	Sample comment		Natland, James H
8	Epoch	Epoch		Natland, James H
9	Nannofossil zone	Nannos zone		Natland, James H
10	Sample thickness	Samp thick	cm	Natland, James H		?0 = unknown, #0 = several cm, #1 = about 1, #1.5 = 1-2, #2.5 = 2-3 or 0-5 (78-541-18-1,60), #3.5 = 3-4 or 2-5 (78-543-17-5,32-37), #4.5 = 4-5, #6 = 5-7
11	Color description	Color desc		Natland, James H
12	Comment	Comment		Natland, James H

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1375 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 Sample label	6 Sample label 2	7 Sample comment	8 Epoch	9 Nannos zone	10 Samp thick [cm]	11 Color desc	12 Comment
78-541	15.5200	-58.7283	-4940	78-541-2-5,120			early Pleistocene	Pseudo-emilianna lacunosa	?0.0	Black	Smeared out
78-541	15.5200	-58.7283	-4940	78-541-3-2,80	78-541-3-2,115		early Pleistocene	Pseudo-emilianna lacunosa	?0.0	Gray	Blebs
78-541	15.5200	-58.7283	-4940	78-541-3-4,55		Ash beds >2 cm in thickness	early Pleistocene	Pseudo-emilianna lacunosa	#2.5	Gray	Smeared out
78-541	15.5200	-58.7283	-4940	78-541-4-3,140		Ash beds >2 cm in thickness	early Pleistocene	Pseudo-emilianna lacunosa	#2.5	Black	Arched
78-541	15.5200	-58.7283	-4940	78-541-4-7,50			early Pleistocene	Pseudo-emilianna lacunosa	?0.0	Gray	Bleb
78-541	15.5200	-58.7283	-4940	78-541-5-2,30			early Pleistocene	Pseudo-emilianna lacunosa	<1.0	?	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-5-2,60			early Pleistocene	Pseudo-emilianna lacunosa	?0.0	Gray	Blebs
78-541	15.5200	-58.7283	-4940	78-541-5-3,82		Ash beds >2 cm in thickness	early Pleistocene	Pseudo-emilianna lacunosa	2.0	Grayish brown	Slightly smeared
78-541	15.5200	-58.7283	-4940	78-541-7-2,27			early Pleistocene	Pseudo-emilianna lacunosa	?0.0	Dark gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-8-2,33		Ash beds >2 cm in thickness	early Pleistocene	Pseudo-emilianna lacunosa	2.0	Black
78-541	15.5200	-58.7283	-4940	78-541-8-7,43			early Pleistocene	H. selii	1.0	Gray
78-541	15.5200	-58.7283	-4940	78-541-9-2,40-90			early Pleistocene	C. macintyrei	?0.0	Black	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-10-1,96			early Pleistocene	H. selii	1.0	Black
78-541	15.5200	-58.7283	-4940	78-541-11-3,20-30			late Pliocene	CN12d	?0.0	Gray	Crystal ash
78-541	15.5200	-58.7283	-4940	78-541-12-7,30		Ash beds >2 cm in thickness	late Pliocene	CN12d	3.0	Gray
78-541	15.5200	-58.7283	-4940	78-541-12-CC		Ash beds >2 cm in thickness	late Pliocene	CN12d	5.0	Black
78-541	15.5200	-58.7283	-4940	78-541-13-3,100			late Pliocene	CN12b	<1.0	Gray	3 laminae
78-541	15.5200	-58.7283	-4940	78-541-13-7,40			late Pliocene	CN12a	<1.0	Gray
78-541	15.5200	-58.7283	-4940	78-541-15-5,120			late Pliocene	CN12a	#1.5	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-1,50			late Pliocene	CN12a	<1.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-2,50		Ash beds >2 cm in thickness	late Pliocene	CN12a	2.0	Black	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-3,28			late Pliocene	CN12a	<0.5	Gray
78-541	15.5200	-58.7283	-4940	78-541-16-3,130			late Pliocene	CN12a	<0.5	Gray
78-541	15.5200	-58.7283	-4940	78-541-16-4,90			late Pliocene	CN12a	<0.5	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-5,25			late Pliocene	CN11b	<0.5	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-5,55			late Pliocene	CN11b	<0.5	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-5,142		Ash beds >2 cm in thickness	late Pliocene	CN11b	7.0	Black
78-541	15.5200	-58.7283	-4940	78-541-16-6,3		Ash beds >2 cm in thickness	late Pliocene	CN11b	4.0	Black
78-541	15.5200	-58.7283	-4940	78-541-16-6,32			late Pliocene	CN11b	<1.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-16-6,80			late Pliocene	CN11b	1.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-17-1,60			late Pliocene	CN11b	2.0	Black	Tilted
78-541	15.5200	-58.7283	-4940	78-541-17-2,100			late Pliocene	CN11b	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-17-4,140			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-17-5,60			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-17-6,50		Ash beds >2 cm in thickness	early Pliocene	CN11a	2.0	Gray
78-541	15.5200	-58.7283	-4940	78-541-17-6,118			early Pliocene	CN11a	#1.5	Black	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-18-1,60			early Pliocene	CN11a	#2.5		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-18-1,140		Ash beds >2 cm in thickness	early Pliocene	CN11a	7.0	Black	Tilted
78-541	15.5200	-58.7283	-4940	78-541-18-2,90			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-18-2,135		Ash beds >2 cm in thickness	early Pliocene	CN11a	3.0	Black
78-541	15.5200	-58.7283	-4940	78-541-18-4,35			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-18-4,65			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-18-5,55			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-19-1,10			early Pliocene	CN10c	?0.0	Black	Bleb
78-541	15.5200	-58.7283	-4940	78-541-19-1,40			early Pliocene	CN10c	1.0	Black
78-541	15.5200	-58.7283	-4940	78-541-19-6,115			early Pliocene	CN10b	#1.5	Gray	Dispersed by burrowing
78-541	15.5200	-58.7283	-4940	78-541-20-1,119		Ash beds >2 cm in thickness	early Pliocene	CN11a	7.0	Black
78-541	15.5200	-58.7283	-4940	78-541-20-3,15		Ash beds >2 cm in thickness	early Pliocene	CN11a	4.0	Black
78-541	15.5200	-58.7283	-4940	78-541-20-3,77			early Pliocene	CN11a	1.0		Burrowed
78-541	15.5200	-58.7283	-4940	78-541-20-5,15			early Pliocene	CN11a	#1.5	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-20-6,135			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-20-7,3			early Pliocene	CN11a	?0.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-22-1,63			early Pliocene	CN10c	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-22-3,70			early Pliocene	CN10c	#1.5	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-22-4,18		Ash beds >2 cm in thickness	early Pliocene	CN10c	2.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-23-2,80			late Pliocene	CN9b	?0.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-23-5,40		Ash beds >2 cm in thickness	late Pliocene	CN9b	2.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-25-4,12			late Pliocene	CN9b	?0.0	Gray	Swirled and mixed
78-541	15.5200	-58.7283	-4940	78-541-27-1,90			late Pliocene	CN9b	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-27-2,80			late Pliocene	Barren	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-27-4,40			late Pliocene	CN9a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-27-5,28			late Pliocene	CN9a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-27-6,140			late Pliocene	CN9a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-28-2,130			late Pliocene	CN9a	10.0	Gray	Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-28-3,70		Ash beds >2 cm in thickness	late Pliocene	CN9a	?0.0		Partially bioturbated
78-541	15.5200	-58.7283	-4940	78-541-29-3,145			late Pliocene	CN9a	?0.0		Disturbed by rotation
78-541	15.5200	-58.7283	-4940	78-541-29-5,75			late Pliocene	CN9b	?0.0	Black	Burrowed
78-541	15.5200	-58.7283	-4940	78-541-30-1,2			late Pliocene	CN9b	?0.0		Burrowed
78-541	15.5200	-58.7283	-4940	78-541-30-3,45			late Pliocene	CN9b	?0.0
78-541	15.5200	-58.7283	-4940	78-541-31-5,30			late Pliocene	CN12a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-31-CC			late Pliocene	CN12a	?0.0	Black	Disturbed
78-541	15.5200	-58.7283	-4940	78-541-32-1,150			late Pliocene	CN12a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-32-4,20-50			late Pliocene	CN12a	?0.0		Bioturbated zone
78-541	15.5200	-58.7283	-4940	78-541-32-5,110			late Pliocene	CN12a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-32-6,143		Ash beds >2 cm in thickness	late Pliocene	CN12a	2.5	Gray	Bioturbated top
78-541	15.5200	-58.7283	-4940	78-541-33-3,80			late Pliocene	CN11b	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-33-3,135		Ash beds >2 cm in thickness	late Pliocene	CN11b	4.0	Black
78-541	15.5200	-58.7283	-4940	78-541-33-4,7		Ash beds >2 cm in thickness	late Pliocene	CN11b	7.0	Black
78-541	15.5200	-58.7283	-4940	78-541-33-4,35			late Pliocene	CN11b	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-33-4,65			late Pliocene	CN11b	?0.0	Black	1-cm bleb
78-541	15.5200	-58.7283	-4940	78-541-33-5,20		Ash beds >2 cm in thickness	late Pliocene	CN11b	#0.0	Gray
78-541	15.5200	-58.7283	-4940	78-541-34-1,35-50			early Pliocene	CN11a	?0.0	Gray	Mixed zone
78-541	15.5200	-58.7283	-4940	78-541-34-1,90			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-2,25			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-2,56			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-3,25			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-3,40			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-3,65			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-4,25			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-4,134			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-5,15			early Pliocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-34-5.75		Ash beds >2 cm in thickness	early Pliocene	CN11a	6.0	Black	Tilted
78-541	15.5200	-58.7283	-4940	78-541-34-6,50		Ash beds >2 cm in thickness	late Miocene	CN11a	3.0	Black	Bioturbated top, tilted
78-541	15.5200	-58.7283	-4940	78-541-34-6,90			late Miocene	CN11a	?0.0
78-541	15.5200	-58.7283	-4940	78-541-35-1,45			late Miocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-35-1,60			late Miocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-35-1,150			late Miocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-35-3,44			late Miocene	CN11a	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-35-5,70			late Miocene	CN10c	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-37-3,80			late Miocene	CN9b	1.0	Gray
78-541	15.5200	-58.7283	-4940	78-541-37-4,82		Ash beds >2 cm in thickness	late Miocene	CN9b	3.0	Greenish gray
78-541	15.5200	-58.7283	-4940	78-541-37-5,76		Ash beds >2 cm in thickness	late Miocene	CN9b	4.0	Black
78-541	15.5200	-58.7283	-4940	78-541-37-6,72			late Miocene	CN9b	?0.0		Bioturbated
78-541	15.5200	-58.7283	-4940	78-541-38-6,62		Ash beds >2 cm in thickness	late Miocene	CN9b	6.0	Black	Indurated tuff
78-541	15.5200	-58.7283	-4940	78-541-40-4,55-75			late Miocene	CN9b	?0.0		Bioturbated zone
78-541	15.5200	-58.7283	-4940	78-541-41-3,26		Ash beds >2 cm in thickness	late Miocene	CN9b	6.0	Black	Indurated tuff
78-541	15.5200	-58.7283	-4940	78-541-41-6,55-74			late Miocene	CN9a	?0.0		Bioturbated zone
78-541	15.5200	-58.7283	-4940	78-541-43-5,70			Barren	Barren	1.0		Tuff
78-541	15.5200	-58.7283	-4940	78-541-43-5,106-110			Barren	Barren			Ashy mudstone
78-541	15.5200	-58.7283	-4940	78-541-43-6,90			Barren	Barren
78-541	15.5200	-58.7283	-4940	78-541-48-5,56			early Miocene	C. costada	2.0	Black
78-541	15.5200	-58.7283	-4940	78-541-48-5,147			early Miocene	C. costada	1.5	Black
78-541	15.5200	-58.7283	-4940	78-541-49-3,40			early Miocene	C. costada	<1.0		Altered
78-541	15.5200	-58.7283	-4940	78-541-49-3,115			early Miocene	C. costada	#1.0	Gray	Altered
78-541	15.5200	-58.7283	-4940	78-541-49-4,70			early Miocene	C. costada	<1.0	Gray	Altered
78-541	15.5200	-58.7283	-4940	78-541-49-4,82			early Miocene	C. costada	<1.0	Gray	Altered
78-541	15.5200	-58.7283	-4940	78-541-49-5,112,119			early Miocene	C. costada	7.0		Sheared out and dispersed
78-541	15.5200	-58.7283	-4940	78-541-50-3,40			early Miocene	S. delmontensi	#1.0
78-541	15.5200	-58.7283	-4940	78-541-50-3,50-65			early Miocene	S. delmontensi	1.0		Sheared out and dispersed
78-542	15.5170	-58.7133	-5016	78-542-1-1,15-20		Ash beds >2 cm in thickness	early Pliocene	CN11a	7.0	Gray	Smeared out
78-542	15.5170	-58.7133	-5016	78-542-1-1,122-150			early Pliocene	CN11a	#0.0		Bioturbated
78-542	15.5170	-58.7133	-5016	78-542-1-2,90-100		Ash beds >2 cm in thickness	early Pliocene	CN11a	2.0	Black	Bioturbated top
78-542	15.5170	-58.7133	-5016	78-542-1-2,130-140		Ash beds >2 cm in thickness	early Pliocene	CN11a	3.0	Gray	Bioturbated, dispersed
78-542	15.5170	-58.7133	-5016	78-542-1-3,55-65		Ash beds >2 cm in thickness	early Pliocene	CN11a	10.0	Black
78-542	15.5170	-58.7133	-5016	78-542-1-4,44-48			early Pliocene	CN11a	4.0	Black	Bioturbated top
78-542	15.5170	-58.7133	-5016	78-542-1-6,70			early Pliocene	CN11a	1.0	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-2-1,0-8		Ash beds >2 cm in thickness	early Pliocene	CN10c	>3.0	Gray	Disturbed
78-542	15.5170	-58.7133	-5016	78-542-2-2,88-92		Ash beds >2 cm in thickness	early Pliocene	CN10c	>2.0	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-2-2,120-125		Ash beds >2 cm in thickness	early Pliocene	CN10c	>2.0	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-2-3,39-40			early Pliocene	CN10c	1.0	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-2-3,133-134			early Pliocene	CN10c	1.0	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-3-1,20-22			early Pliocene	CN10b	#1.5	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-3-2,94-95			early Pliocene	CN10b	1.0	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-3-3,58-65		Ash beds >2 cm in thickness	early Pliocene	CN10b	7.0	Gray	Bioturbated top
78-542	15.5170	-58.7133	-5016	78-542-4-1,40-41			late Miocene	CN9b	<0.5	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-4-1,120-121			late Miocene	CN9b	<0.5	Gray	Dispersed
78-542	15.5170	-58.7133	-5016	78-542-4-3,140-141			late Miocene	CN9b	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-1-1,58-59			early Pliocene	CN11	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-1-2,110-111			early Pliocene	CN11	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-1-2,130-131			early Pliocene	CN11	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-1-3,38-41		Ash beds >2 cm in thickness	early Pliocene	CN11	2.0	Gray	Bioturbated
78-542A	15.5195	-58.7133	-5016	78-542A-1-3,90-91			early Pliocene	CN11	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-1-5,20			early Pliocene	CN10b	<1.0	Black
78-542A	15.5195	-58.7133	-5016	78-542A-1-5,40-52		Ash beds >2 cm in thickness	early Pliocene	CN10b	12.0	Gray	Bioturbated top
78-542A	15.5195	-58.7133	-5016	78-542A-2-2,30-42		Ash beds >2 cm in thickness	late Miocene	CN9a	10.0	Gray	Top bioturbated
78-542A	15.5195	-58.7133	-5016	78-542A-2-2,110-111			late Miocene	CN9a	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-2-4,55-57			late Miocene	CN9a	#1.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-2-4,130-132			late Miocene	CN9a	#1.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-2-5,70-75			late Miocene	CN9a	?0.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-2-6,70-75			late Miocene	CN9a	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-3-1,112-113			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-3-2,25-26			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-3-2,83-93			late Miocene	CN9a	?0.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-3-5,130-131			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-3-5,140-141			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-4-1,25-30		Ash beds >2 cm in thickness	late Miocene	CN9a	#2.5	Gray	Top dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-4-1,130-132			late Miocene	CN9a	<2.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-4-4,36-36			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-4-5,120-121			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-5-4,110-111			late Miocene	CN9a	<0.5	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-10-1,0-2			late Miocene	CN9a	<1.0	Gray	Dispersed
78-542A	15.5195	-58.7133	-5016	78-542A-10-4,42-46			late Miocene	CN9a	<2.0	Gray	Disturbed
78-542A	15.5195	-58.7133	-5016	78-542A-10-4,55-56			late Miocene	CN9a	<0.5	Gray	Disturbed
78-542A	15.5195	-58.7133	-5016	78-542A-10-4,77-79			late Miocene	CN9a	<0.5	Gray	Disturbed
78-542A	15.5195	-58.7133	-5016	78-542A-10-5,22-23			late Miocene	CN9a	<0.5	Gray	Disturbed
78-543	15.7123	-58.6537	-5633	78-543-1			early Pleistocene	CN9a			Sections 1 and 2 have vitric mud representing concentrated ash beds disturbed by drilling. Sections 5 to 7 have dispersed lumps of ash in a disturbed vitric-mud matrix
78-543	15.7123	-58.6537	-5633	78-543-2			early Pleistocene	CN9a			Disturbed lumps of ash in a vitric mud matrix
78-543	15.7123	-58.6537	-5633	78-543-3			early Pleistocene	CN9a			Disturbed through Section 2
78-543	15.7123	-58.6537	-5633	78-543-3-3,85-110			early Pleistocene	C. macintyrei	25.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-3-4,50-80			early Pleistocene	C. macintyrei	30.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-3-4,95-100			early Pleistocene	C. macintyrei	5.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-3-5,132-138			early Pleistocene	C. macintyrei	3.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-3-6,15			early Pleistocene	C. macintyrei	<2.0	Olive gray	Ashy mud, disturbed
78-543	15.7123	-58.6537	-5633	78-543-4-1,40-45			late Pliocene	CN12d	#3.5	Olive gray	Disturbed lump
78-543	15.7123	-58.6537	-5633	78-543-4-1,55-61			late Pliocene	CN12d	?3.0	Olive gray	Disturbed lump
78-543	15.7123	-58.6537	-5633	78-543-4-1,73-9			late Pliocene	CN12d	#6.0	Olive gray	Disturbed lump
78-543	15.7123	-58.6537	-5633	78-543-4-2,15-25			late Pliocene	CN12d	?5.0	Olive gray	Disturbed lump
78-543	15.7123	-58.6537	-5633	78-543-4-3,35-60			late Pliocene	CN12d	?10.0	Olive gray	Ashy mud; disturbed bed
78-543	15.7123	-58.6537	-5633	78-543-4-3,140	78-543-4-4,20		late Pliocene	CN12d	?5.0	Olive gray	Very disturbed
78-543	15.7123	-58.6537	-5633	78-543-4-4,120			late Pliocene	CN12d	2.0	Olive gray	Disturbed
78-543	15.7123	-58.6537	-5633	78-543-4-5,20-40			late Pliocene	CN12d	?0.0	Olive gray	Disturbed ashy mud
78-543	15.7123	-58.6537	-5633	78-543-4-5,62-75		Ash beds >2 cm in thickness	late Pliocene	CN12d	5.0	Dark gray	Bioturbated top
78-543	15.7123	-58.6537	-5633	78-543-4-5,95-100			late Pliocene	CN12d	?0.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-4-6,20-30			late Pliocene	CN12d	?0.0	Olive gray	Disturbed lump
78-543	15.7123	-58.6537	-5633	78-543-4-6,139-142			late Pliocene	CN12d	2.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-4-6,147-150			late Pliocene	CN12d	9.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-5			late Pliocene	CN12b			Has dispersed lumps of ash in highly deformed Sections 1 and 2
78-543	15.7123	-58.6537	-5633	78-543-6-6,125			late Pliocene	CN12a	<1.0	Dusky yellow green	Disturbed
78-543	15.7123	-58.6537	-5633	78-543-7			late Pliocene	CN12a			Has dispersed lumps of ash in highly deformed mud in Section 1
78-543	15.7123	-58.6537	-5633	78-543-7-3,113-116		Ash beds >2 cm in thickness	late Miocene to early Pliocene	Forams N17-N20	#2.5	Very dark gray	Bed
78-543	15.7123	-58.6537	-5633	78-543-8-1,40-50			late Miocene to early Pliocene	Forams N17-N20	?0.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-8-1,90-100			late Miocene to early Pliocene	Forams N17-N20	?0.0	Olive gray	Disturbed ashy mud
78-543	15.7123	-58.6537	-5633	78-543-8-1,148-150		Ash beds >2 cm in thickness	late Miocene to early Pliocene	Forams N17-N20	?2.0	Brownish black	Lump
78-543	15.7123	-58.6537	-5633	78-543-8-2,8-10		Ash beds >2 cm in thickness	late Miocene to early Pliocene	Forams N17-N20	#1.5	Brownish black	Curved bed
78-543	15.7123	-58.6537	-5633	78-543-8-2,90-95		Ash beds >2 cm in thickness	late Miocene to early Pliocene	Forams N17-N20	#4.5	Brownish black	Bed
78-543	15.7123	-58.6537	-5633	78-543-8-3,5-10			late Miocene to early Pliocene	Forams N17-N20	?0.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-8-3,20-90			late Miocene to early Pliocene	Forams N17-N20	#0.0	Olive gray	Lumps of ash this interval
78-543	15.7123	-58.6537	-5633	78-543-8-5,82-85			late Miocene to early Pliocene	Forams N17-N20	?0.0	Olive gray	Ashy mud
78-543	15.7123	-58.6537	-5633	78-543-9-3,15-20			late Miocene to early Pliocene	Forams N17-N20	5.0	Olive gray	Ashy turbidite
78-543	15.7123	-58.6537	-5633	78-543-10			late Miocene to early Pliocene	Forams N17-N20			Has numerous ashy patches up to 0.5 cm scattered in Sections 1 to 4
78-543	15.7123	-58.6537	-5633	78-543-11				Barren			Has dispersed ashy spots throughout Sections 1 and 2
78-543	15.7123	-58.6537	-5633	78-543-11-3,127-131		Ash beds >2 cm in thickness		Barren	3.0	Brownish black	Undisturbed
78-543	15.7123	-58.6537	-5633	78-543-12				Barren			Has only dispersed ash, no beds.
78-543	15.7123	-58.6537	-5633	78-543-13-3,100-110				Barren	?0.0	Greenish gray	Disturbed ashy mud
78-543	15.7123	-58.6537	-5633	78-543-13-3,130-140				Barren	?0.0	Olive	Disturbed ashy mud
78-543	15.7123	-58.6537	-5633	78-543-13-4,80-95				Barren	?0.0	Greenish gray	Altered disturbed ashy mud
78-543	15.7123	-58.6537	-5633	78-543-13-5,80-117				Barren	?0.0	Greenish gray	Altered disturbed ashy mud
78-543	15.7123	-58.6537	-5633	78-543-14-1,55-57		Ash beds >2 cm in thickness		Barren	#1.5	Black	Bed
78-543	15.7123	-58.6537	-5633	78-543-14-1,74-75				Barren	1.0	Gray	Thin bed
78-543	15.7123	-58.6537	-5633	78-543-14-2,50-55		Ash beds >2 cm in thickness		Barren	5.0	Dark gray	Bioturbated top
78-543	15.7123	-58.6537	-5633	78-543-15	16			Barren			No distinct ash beds in relatively undisturbed Cores 15 and 16
78-543	15.7123	-58.6537	-5633	78-543-17-1,130-135		Ash beds >2 cm in thickness	middle Miocene	D. alata	5.0	Black	Bioturbated top
78-543	15.7123	-58.6537	-5633	78-543-17-1,142-144		Ash beds >2 cm in thickness	middle Miocene	D. alata	2.0	Very dark gray
78-543	15.7123	-58.6537	-5633	78-543-17-5,32-37		Ash beds >2 cm in thickness	middle Miocene	D. alata	#3.5	Dark gray	Partly dispersed by bioturbation
78-543	15.7123	-58.6537	-5633	78-543-18-1,57-58		Ash beds >2 cm in thickness	middle Miocene	D. alata	<1.0	Black
78-543	15.7123	-58.6537	-5633	78-543-18-1,106-108		Ash beds >2 cm in thickness	middle Miocene	D. alata	<2.0	Black
78-543	15.7123	-58.6537	-5633	78-543-18-2,113-119		Ash beds >2 cm in thickness	early Miocene	C. costata	#2.5	Black	Partly dispersed by bioturbation
78-543	15.7123	-58.6537	-5633	78-543-18-3,99-100			early Miocene	C. costata	<1.0	Gray
78-543	15.7123	-58.6537	-5633	78-543-18-3,125-128		Ash beds >2 cm in thickness	early Miocene	C. costata	#1.5	Black	Dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-18-5,50-56		Ash beds >2 cm in thickness	early Miocene	C. costata	#2.5	Black	Partly dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-18-5,85-105		Ash beds >2 cm in thickness	early Miocene	C. costata	7.0	Black	Abundant ash in drilling breccia
78-543	15.7123	-58.6537	-5633	78-543-18-6,80-82		Ash beds >2 cm in thickness	early Miocene	C. costata	#1.5	Black	Dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-19-1,81-83		Ash beds >2 cm in thickness	early Miocene	C. costata	#1.5	Brownish black	Dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-19-3,23-27		Ash beds >2 cm in thickness	early Miocene	C. costata	#1.5	Black	Dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-19-5,120-123		Ash beds >2 cm in thickness	early Miocene	C. costata	#1.5	Olive black	Dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-19-7,5-6		Ash beds >2 cm in thickness	early Miocene	C. costata	1.0	Dark gray	Dispersed by burrows
78-543	15.7123	-58.6537	-5633	78-543-20-4,10-18			early Miocene	C. costata	#2.5	Very dark gray	May be 2 redistributed
78-543	15.7123	-58.6537	-5633	78-543-21	22		Oligocene				No recovery. Below this, ash is virtually nonexistent, isolated occurrences as noted
78-543	15.7123	-58.6537	-5633	78-543-27-1,65-66			Oligocene		<1.0		Altered
78-543	15.7123	-58.6537	-5633	78-543-32-4,66-68(?)			middle Eocene		<2.0	Light greenish gray	Feldspathic mudstone
78-543	15.7123	-58.6537	-5633	78-543-34-2,42-43			middle Eocene		1.0	Greenish gray	Altered
78-543A	15.7123	-58.6537	-5633	78-543A-1			Quaternary				Core 1 is the mud-line corevery disturbed, generally vitric mud
78-543A	15.7123	-58.6537	-5633	78-543A-1-2,85-95			Quaternary			Olive gray	Ashy mud
78-543A	15.7123	-58.6537	-5633	78-543A-1-2,131-137			Quaternary		#3.5	Light brownish gary	May be Roseau ash
78-543A	15.7123	-58.6537	-5633	78-543A-1-4,20-35			middle Eocene		?0.0	Dark gray	Ashy mud
78-543A	15.7123	-58.6537	-5633	78-543A-2-1,86			middle Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-2-1,91			middle Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-2-2,50			middle Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-2-2,60			middle Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-2-2,61			middle Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-2-CC,15			middle Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-3-1,21			early Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-3-1,29			early Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-3-1,64			early Eocene		2.0		Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.
78-543A	15.7123	-58.6537	-5633	78-543A-5-2,31-33			early Eocene				Cores 2-10 are Eocene to Campanian, continuous in cored interval with cores Hole 543. Cores 543A-2,3, and 5 contain tiny, horizontal, light greenish gray smectite-rich beds that are altered volcanic ash. All but one are less than 1 cm in thickness.