Citation:

S0031-0182(03)00396-1

Name: Quartz grain microtextures of sediments from ODP Hole 188-1166A (Table 1)
Published: 2003
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

This paper presents the results of the scanning electron microscopic (SEM) analysis of quartz grains from a selection of samples at Site 1166. Ocean Drilling Program Leg 188 drilled Site 1166 on the Prydz Bay continental shelf, Antarctica, to document onset and fluctuations of East-Antarctic glaciation. This site recovered Upper Pliocene-Holocene glacial sediments directly above Cretaceous through Lower Oligocene sediments recording the transition from preglacial to early glacial conditions. SEM analysis of quartz grains at Site 1166 was used to characterize the glacial and preglacial sediments by their diagnostic textures. Angular edges, edge abrasion as well as arcuate to straight steps, are the most frequent features in glacial deposits. The highest frequency of grains with round edges is present in Middle-Late Eocene fluvio-deltaic sands. However, angular outlines, fractured plates with subparallel linear fractures and edge abrasion indicating glacier influence are also present. Preglacial carbonaceous mudstone and laminated gray claystone show distinctive high relief quartz grains and some chemical weathering on grain surfaces. The results of the microtextural analysis of quartz grains are used to verify some critical periods of ice sheet evolution, such as the transition from the East Antarctic preglacial to glacial conditions on the continental shelf from Middle/Late Eocene to Late Eocene/Early Oligocene time.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Latitude: -67.696160 * Longitude: 74.786930

Date/Time Start: 2000-02-16T01:30:00 * Date/Time End: 2000-02-21T16:00:00

Minimum DEPTH, sediment/rock: 2.75 m * Maximum DEPTH, sediment/rock: 342.88 m

Event(s):

188-1166A * Latitude: -67.696160 * Longitude: 74.786930 * Date/Time Start: 2000-02-16T01:30:00 * Date/Time End: 2000-02-21T16:00:00 * Elevation: -475.4 m * Penetration: 381.3 m * Recovery: 71.31 m * Location: Prydz Bay * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 381.3 m cored; 0 m drilled; 18.7 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Sample code/label	Sample label		Strand, Kari O	DSDP/ODP/IODP sample designation
3	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Morphological textures, Angular outline
4	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Morphological textures, Rounded outline
5	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Morphological textures, Low relief
6	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Morphological textures, Medium relief
7	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Morphological textures, High relief
8	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Large conchoidal fractures
9	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Small conchoidal fractures
10	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Arcuate steps
11	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Straight steps
12	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Crescentic gougles
13	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Imbricated blocks
14	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Large breakage blocks
15	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Fractured plates
16	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Subparallel linear fractures
17	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Curved grooves
18	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Straight grooves
19	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, V-shaped percussion cracks
20	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Meandering ridges
21	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Edge abrasion
22	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Surface abrasion
23	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Mechanical textures, Deep troughs
24	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Chemical textures, Preweathered surfaces
25	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Chemical textures, Weathered surfaces
26	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Chemical textures, Small precipitation features
27	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Chemical textures, Large precipitation features
28	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Chemical textures, Adhering particles
29	Quartz, surface texture	Qz texture	%	Strand, Kari O	Scanning electron microscope (SEM)	Chemical textures, New growth

License:

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

Size:

532 data points

Data

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

1 Depth sed [m]	2 Sample label (DSDP/ODP/IODP sample designation)	3 Qz texture [%] (Morphological textures, Angul...)	4 Qz texture [%] (Morphological textures, Round...)	5 Qz texture [%] (Morphological textures, Low r...)	6 Qz texture [%] (Morphological textures, Mediu...)	7 Qz texture [%] (Morphological textures, High ...)	8 Qz texture [%] (Mechanical textures, Large co...)	9 Qz texture [%] (Mechanical textures, Small co...)	10 Qz texture [%] (Mechanical textures, Arcuate ...)	11 Qz texture [%] (Mechanical textures, Straight...)	12 Qz texture [%] (Mechanical textures, Crescent...)	13 Qz texture [%] (Mechanical textures, Imbricat...)	14 Qz texture [%] (Mechanical textures, Large br...)	15 Qz texture [%] (Mechanical textures, Fracture...)	16 Qz texture [%] (Mechanical textures, Subparal...)	17 Qz texture [%] (Mechanical textures, Curved g...)	18 Qz texture [%] (Mechanical textures, Straight...)	19 Qz texture [%] (Mechanical textures, V-shaped...)	20 Qz texture [%] (Mechanical textures, Meanderi...)	21 Qz texture [%] (Mechanical textures, Edge abr...)	22 Qz texture [%] (Mechanical textures, Surface ...)	23 Qz texture [%] (Mechanical textures, Deep tro...)	24 Qz texture [%] (Chemical textures, Preweather...)	25 Qz texture [%] (Chemical textures, Weathered ...)	26 Qz texture [%] (Chemical textures, Small prec...)	27 Qz texture [%] (Chemical textures, Large prec...)	28 Qz texture [%] (Chemical textures, Adhering p...)	29 Qz texture [%] (Chemical textures, New growth...)
2.75	188-1166A-1R-CC,4-6	60	40	13	53	33	7	33	60	47	20	20	47	80	27	47	53	7	27	73	33	20	7	33	73	7	53	0
20.29	188-1166A-3R-1,92-96	57	43	14	61	25	11	21	32	39	21	39	43	43	21	11	7	4	11	75	43	4	32	32	61	11	18	4
38.90	188-1166A-5R-1,69-72	65	35	12	69	19	27	35	42	58	31	12	19	42	46	0	12	8	0	77	54	12	15	31	31	19	23	0
65.56	188-1166A-8R-1,16-17	57	43	14	61	25	11	21	32	39	21	39	43	43	21	11	7	4	11	75	43	4	32	32	61	11	18	4
75.68	188-1166A-9R-1,66-70	72	28	4	68	28	4	16	12	12	4	4	20	56	36	4	16	0	8	52	16	0	12	32	80	0	8	0
84.55	188-1166A-10R-1,13-17	56	44	8	80	12	0	4	16	8	4	16	4	48	36	28	24	0	4	64	20	0	36	32	40	16	8	0
94.50	188-1166A-11R-1,49-51	56	44	11	74	15	11	33	19	19	22	15	11	48	37	19	7	0	0	74	33	0	37	19	37	7	0	4
104.91	188-1166A-12R-1,39-43	60	40	10	73	17	7	27	47	50	20	7	7	40	27	10	10	0	0	60	27	3	23	27	70	0	7	0
115.82	188-1166A-13R-2,100-104	80	20	4	76	20	16	16	40	40	24	28	28	64	36	16	16	4	4	56	20	0	28	28	52	16	12	4
125.04	188-1166A-14R-2,52-55	54	46	8	88	8	4	21	29	50	33	17	8	33	33	17	17	4	0	79	46	4	25	46	25	21	8	0
156.31	188-1166A-17RI-4,39-42	25	75	29	63	8	8	17	21	29	4	8	63	29	25	29	25	4	21	67	54	13	21	63	46	17	8	0
156.78	188-1166A-17RII-4,86-89	63	38	4	79	17	4	13	54	42	33	8	8	42	17	8	4	4	8	54	50	0	4	29	83	8	8	0
161.25	188-1166A-18R-1,23-26	52	48	8	72	20	0	16	32	24	16	16	8	40	36	24	16	0	4	60	40	0	28	36	76	8	4	0
199.63	188-1166A-22R-1,12-13	30	70	13	73	13	7	33	23	13	17	20	20	30	43	10	13	17	7	83	77	0	17	40	47	7	20	3
238.44	188-1166A-26R-1,53-54	40	60	8	72	20	4	12	24	32	24	16	20	44	32	0	0	4	8	80	68	0	16	52	84	0	20	0
288.84	188-1166A-25R-1,53-54	56	44	28	52	20	16	8	32	32	4	20	20	60	36	28	36	12	16	68	36	4	16	32	64	12	16	0
297.16	188-1166A-32R-2,34-38	87	13	7	57	37	13	17	20	20	10	40	40	43	10	3	7	0	0	40	10	0	0	30	50	20	33	3
314.26	188-1166A-34R-134-38	54	46	8	58	35	8	23	12	23	19	38	42	54	15	0	4	8	0	77	46	0	12	19	35	12	23	4
342.88	188-1166A-37R-CC,6-4	45	55	35	60	5	20	20	45	45	25	40	30	70	55	20	50	20	10	75	50	5	30	55	40	15	25	0