Citation:

0031-0182(81)90048-1

Name: Accumulation rates of Late Cretaceous eolian sediments in DSDP Hole 62-463 in the Mid-Pacific Mountains, central North Pacific Ocean (Table 1)
Published: 1981
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1981 (exact date unknown) • DOI registered: 2008-10-01

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Abstract:

Eolian dust preserved in deep-sea sediment can provide a direct historical record of global atmospheric circulation. Data from a reasonably complete Upper Cretaceous section of pelagic sediments recovered at DSDP Site 463 in the central North Pacific provides a good record of eolian activity during the time period between about 112 and 66 m.y. ago. We have isolated the eolian component from these sediments, determined its mass accumulation rate and combined these data with the mineralogy of the inorganic fraction determined by others to construct a record of eolian deposition. Volcanic input is significant during Aptian-Albian and Maastrichtian times, otherwise continentally derived minerals dominate. Mass accumulation rates of the continental eolian component range from over 500 mg/cm**2/kyr during the late Albian to a low of 5 mg/cm**2/kyr during Coniacian time. (For comparison, the upper Miocene to Pleistocene rate averages about 20 mg/cm**2/kyr). The temporal pattern of Late Cretaceous eolian accumulation of Site 463 generally matches known changes in sea level, suggesting that source availability is the dominant control of eolian sedimentation during that time.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Latitude: 21.350200 * Longitude: 174.667800

Date/Time Start: 1978-08-02T00:00:00 * Date/Time End: 1978-08-02T00:00:00

Minimum DEPTH, sediment/rock: 48.5 m * Maximum DEPTH, sediment/rock: 626.3 m

Event(s):

62-463 * Latitude: 21.350200 * Longitude: 174.667800 * Date/Time: 1978-08-02T00:00:00 * Elevation: -2525.0 m * Penetration: 822.5 m * Recovery: 305.5 m * Location: North Pacific/SEAMOUNT * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 92 cores; 820.5 m cored; 0 m drilled; 37.2 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	AGE	Age	ka BP			Geocode
3	Density, dry bulk	DBD	g/cm³	Rea, David K	Calculated from mass/volume
4	Sedimentation rate	SR	cm/ka	Rea, David K	Calculated
5	Accumulation rate, mass	MAR	g/cm²/ka	Rea, David K	Calculated
6	Dust, aeolian	Dust	%	Rea, David K	Calculated from mass/volume	Eolian fraction (wt. %)
7	Accumulation rate, dust	DMAR	g/cm²/ka	Rea, David K	Calculated	Eolian MAR

License:

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

Size:

300 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 DBD [g/cm³]	4 SR [cm/ka]	5 MAR [g/cm²/ka]	6 Dust [%]	7 DMAR [g/cm²/ka]
48.5	66000	1.19	5.42	6.45	1.68	0.108
56.3	66200	1.13	5.42	6.12	1.14	0.070
64.9	66300	1.13	5.42	6.12	1.14	0.070
76.2	66500	1.20	5.42	6.50	2.75	0.177
79.2	66600	1.34	5.42	7.26	10.30	0.748
84.7	66700	1.35	5.42	7.32	1.42	0.104
91.4	66800	1.37	5.42	7.43	6.75	0.502
95.9	66900	1.30	5.42	7.05	4.89	0.345
102.5	67100	1.23	1.10	1.35	2.50	0.034
107.0	67500	1.27	1.10	1.40	4.96	0.069
112.0	68000	1.31	1.10	1.44	1.35	0.019
115.2	68300	1.19	1.10	1.31	1.36	0.018
119.9	68700	1.21	1.10	1.33	2.64	0.035
126.4	69100	1.25	5.45	6.81	1.47	0.100
131.4	69200	1.27	5.45	6.92	2.66	0.184
135.9	69200	1.39	5.45	7.58	1.86	0.141
145.6	69400	1.29	5.45	7.03	2.95	0.207
159.7	69700	1.27	5.45	6.92	5.74	0.397
164.2	69800	1.25	5.45	6.81	5.14	0.350
167.7	69800	1.28	5.45	6.98	1.94	0.135
178.5	70100	1.25	1.22	1.52	1.76	0.027
183.1	70500	1.22	1.22	1.49	2.20	0.033
188.6	70900	1.34	1.22	1.63	1.93	0.031
191.4	71100	1.29	1.22	1.57	1.39	0.022
196.3	71500	1.16	1.22	1.42	2.74	0.039
201.1	71900	1.44	1.22	1.76	1.57	0.028
202.7	72200	1.35	0.47	0.63	1.52	0.010
206.8	73000	1.17	0.47	0.56	1.27	0.007
217.1	82400	1.22	0.30	0.37	1.42	0.005
221.4	83800	1.21	0.30	0.36	2.20	0.008
225.7	84400	1.17	0.97	1.13	3.96	0.045
243.3	86200	1.21	0.97	1.17	5.40	0.063
254.3	87300	1.53	0.97	1.48	6.23	0.092
262.1	87900	1.43	1.52	2.17	6.49	0.141
282.3	89200	1.25	1.52	1.90	3.13	0.059
292.3	89900	1.34	1.52	2.04	2.93	0.060
309.5	90700	1.70	2.25	3.82	7.65	0.292
329.2	91600	1.61	2.25	3.62	5.56	0.201
378.3	95700	1.52	1.06	1.61	17.36	0.279
382.6	96100	1.64	1.06	1.74	7.08	0.123
426.6	100400	1.48	0.60	0.89	3.69	0.033
433.5	101100	1.62	2.50	4.05	11.37	0.460
462.8	102600	1.81	1.40	2.53	20.16	0.510
481.2	103900	1.46	1.40	2.04	27.77	0.566
490.9	104600	1.79	1.40	2.51	7.95	0.200
501.0	105300	1.93	1.40	2.70	1.16	0.031
510.2	105900	2.09	1.40	2.93	11.81	0.346
513.3	106200	2.04	1.40	2.86	12.36	0.353
522.5	106800	2.20	1.40	3.08	12.51	0.385
535.8	107800	2.37	1.40	3.32	16.56	0.550
538.1	107900	2.13	1.40	2.98	19.25	0.574
541.0	108100	2.09	1.40	2.93	11.68	0.342
547.5	108600	2.13	1.40	2.98	13.97	0.416
558.5	109400	1.96	1.40	2.74	3.29	0.090
567.1	110000	2.00	2.50	5.00	9.75	0.487
585.9	110800	2.10	2.50	5.25	14.02	0.736
606.0	111600	1.99	2.50	4.98	5.86	0.292
615.0	111900	1.93	2.50	4.82	32.73	1.578
622.6	112200	1.63	2.50	4.08	56.97	2.324
626.3	112400	1.79	2.50	4.48	11.16	0.500