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Pospichal, James J (2003): (Table T1) Biostratigraphy and distribution of Quaternary and Miocene calcareous nannofossils in ODP Site 188-1165 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.780564, Supplement to: Pospichal, JJ (2003): Calcareous nannofossils from continental rise Site 1165, ODP Leg 188, Prydz Bay, Antarctica. In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-14, https://doi.org/10.2973/odp.proc.sr.188.014.2003

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Abstract:
During Ocean Drilling Program (ODP) Leg 188, piston and rotary cores were recovered at three southern Indian Ocean sites on the continental margin in Prydz Bay, Antarctica, in order to obtain a detailed sedimentary record reflecting Cenozoic Antarctic glacial history and paleoenvironments. Coring at continental rise Site 1165 revealed a relatively continuous, ~1000-m, lower Miocene to upper Pliocene section overlain by a thin Quaternary cover. No nannofossils were noted at shelf Site 1166, where a discontinuous, ~343-m section of Quaternary- to Late Cretaceous-age predominantly glacial marine diamictons was recovered. At slope Site 1167, ~447 m of clayey silty sands was recovered, where nannofossils are rare and sporadic but indicate Pleistocene age for at least the upper ~227 m there.
This report focuses on data collected from Site 1165, where Neogene-Quaternary calcareous nannofossils are moderately to well preserved and sporadically present, but abundant in several intervals. Assemblages are characterized by low diversity with one or two dominant taxa. Mid- and low-latitude age-diagnostic marker species are absent. Nannofossil Zone CN15 and Subzones CN14b and CN13b-CN14a were identified in Pleistocene sediments based on the presence of Emiliania huxleyi, Pseudoemiliania lacunosa, and large Gephyrocapsa caribbeanica. Pliocene sediments are barren of nannofossils. Only general age and zonal assignments are possible for the relatively complete Miocene section (as dated by siliceous microfossils). The presence of Minylitha convallis in one sample permits the identification of upper Miocene Zones CN7-CN9. Cyclicargolithus floridanus is used to delineate presence of middle Miocene Zone CN5 and older. Assemblages in samples from the base of the section at Site 1165 are indicative of an early Miocene age (CN1-CN3). Overall, nannofossil assemblages are characterized by dominant Reticulofenestra spp., which are typical of high latitudes. Reticulofenestra perplexa and Reticulofenestra producta form nearly monospecific assemblages in a few intervals. M. convallis has not previously been reported in upper Miocene sediments from the Antarctic margin and likely indicate a brief warming event.
Sporadic nannofossil abundance increases at deepwater (~3500 m) Site 1165 may be due to the following processes or combination of processes: (1) high nannofloral productivity in surface waters around Prydz Bay, possibly associated with warmer intervals; (2) periodic downward fluctuations in the calcium carbonate compensation depth, permitting less dissolution (possibly the result of the first condition); or (3) rapid transport and burial downslope.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -64.379583 * Median Longitude: 67.218720 * South-bound Latitude: -64.379650 * West-bound Longitude: 67.218060 * North-bound Latitude: -64.379450 * East-bound Longitude: 67.219050
Date/Time Start: 2000-01-28T15:00:00 * Date/Time End: 2000-02-14T20:30:00
Minimum DEPTH, sediment/rock: 0.200 m * Maximum DEPTH, sediment/rock: 998.220 m
Event(s):
188-1165A  * Latitude: -64.379650 * Longitude: 67.219050 * Date/Time Start: 2000-01-28T15:00:00 * Date/Time End: 2000-01-29T05:15:00 * Elevation: -3537.0 m * Penetration: 5.4 m * Recovery: 5.43 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 core; 5.4 m cored; 0 m drilled; 100.6 % recovery
188-1165B  * Latitude: -64.379650 * Longitude: 67.219050 * Date/Time Start: 2000-01-29T05:15:00 * Date/Time End: 2000-02-04T05:30:00 * Elevation: -3537.6 m * Penetration: 682.2 m * Recovery: 434.04 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 76 cores; 682.2 m cored; 0 m drilled; 63.6 % recovery
188-1165C  * Latitude: -64.379450 * Longitude: 67.218060 * Date/Time Start: 2000-02-04T05:30:00 * Date/Time End: 2000-02-14T20:30:00 * Elevation: -3537.5 m * Penetration: 999.1 m * Recovery: 269.27 m * Location: Indian Ocean * Campaign: Leg188 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 335.7 m cored; 663.4 m drilled; 80.2 % recovery
Comment:
Sediment depth is given in mbsf. Abundance values represent the average number of specimens per ~200 fields of view at 1000x. All slides were examined a minimum of 800 fields of view. Warm intervals: sample 188-1165B-14H-CC,34-44 and samples 188-1165C-18R-3,47-48 to 188-1165C-18R-4,51-52. Barren samples: 188-1165B-2H-7 to 188-1165B-14H-6, 188-1165B-16H-4 to 188-1165B-20H-4, 188-1165B-22X-2 to 188-1165B-24X-3, 188-1165B-28X-1 to 188-1165B-57X, 188-1165B-69X to 188-1165B-73X, 188-1165C-10R to 188-1165C-11R-4, 188-1165C-16R, 188-1165C-20R, 188-1165C-23R-1 to 188-1165C-26R-1 and 188-1165C-34R.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Sample code/labelSample labelPospichal, James JDSDP/ODP/IODP sample designation
3 DEPTH, sediment/rockDepth sedmGeocode
4 Nannofossil zoneNannos zonePospichal, James J
5 EpochEpochPospichal, James J
6 NannofossilsNannos#Pospichal, James Jtotal abundance
7 Nannofossils preservationNannos preservPospichal, James JG = good, M = moderate, P = poor
8 Species richnessSPospichal, James JCounting, light microscope
9 Calcidiscus leptoporusC. leptoporus#Pospichal, James JCounting, light microscope
10 Coccolithus pelagicusC. pelagicus#Pospichal, James JCounting, light microscope
11 Emiliania huxleyiE. huxleyi#Pospichal, James JCounting, light microscope
12 Gephyrocapsa apertaG. aperta#Pospichal, James JCounting, light microscope
13 Gephyrocapsa caribbeanicaG. caribbeanica#Pospichal, James JCounting, light microscope<4 µm
14 Gephyrocapsa caribbeanicaG. caribbeanica#Pospichal, James JCounting, light microscope4-5.5 µm
15 Gephyrocapsa caribbeanicaG. caribbeanica#Pospichal, James JCounting, light microscope5.5-6.5 µm
16 Gephyrocapsa oceanicaG. oceanica#Pospichal, James JCounting, light microscope<4 µm
17 Gephyrocapsa oceanicaG. oceanica#Pospichal, James JCounting, light microscope4-5.5 µm
18 Gephyrocapsa oceanicaG. oceanica#Pospichal, James JCounting, light microscope5.5-6.5 µm
19 Gephyrocapsa ericsoniiG. ericsonii#Pospichal, James JCounting, light microscope
20 Gephyrocapsa parallelaG. parallela#Pospichal, James JCounting, light microscope
21 Gephyrocapsa spp.Gephyrocapsa spp.#Pospichal, James JCounting, light microscope
22 Helicosphaera carteriH. carteri#Pospichal, James JCounting, light microscope
23 Umbilicosphaera sibogae var. foliosaU. sibogae var. foliosa#Pospichal, James JCounting, light microscope
24 Coccolithus pelagicusC. pelagicus#Pospichal, James JCounting, light microscopew/ bar
25 Pseudoemiliania ovataP. ovata#Pospichal, James JCounting, light microscope
26 Pseudoemiliania lacunosaP. lacunosa#Pospichal, James JCounting, light microscope
27 Reticulofenestra asanoiR. asanoi#Pospichal, James JCounting, light microscope
28 Reticulofenestra perplexaR. perplexa#Pospichal, James JCounting, light microscope
29 Reticulofenestra productaR. producta#Pospichal, James JCounting, light microscope
30 Reticulofenestra pseudoumbilicusR. pseudoumbilicus#Pospichal, James JCounting, light microscope
31 Reticulofenestra pseudoumbilicusR. pseudoumbilicus#Pospichal, James JCounting, light microscope>10 µm
32 Reticulofenestra gelidaR. gelida#Pospichal, James JCounting, light microscope
33 Reticulofenestra gelidaR. gelida#Pospichal, James JCounting, light microscope>10 µm
34 Reticulofenestra minutulaR. minutula#Pospichal, James JCounting, light microscope5-8 µm
35 Reticulofenestra minutulaR. minutula#Pospichal, James JCounting, light microscope3-5 µm
36 Reticulofenestra spp.Reticulofenestra spp.#Pospichal, James JCounting, light microscope
37 Reticulofenestra haqiiR. haqii#Pospichal, James JCounting, light microscope3-5 µm
38 Reticulofenestra haqiiR. haqii#Pospichal, James JCounting, light microscope5-8 µm
39 Reticulofenestra haqiiR. haqii#Pospichal, James JCounting, light microscope<3 µm
40 Reticulofenestra minutaR. minuta#Pospichal, James JCounting, light microscope
41 Placoliths, smallPlacoliths small#Pospichal, James JCounting, light microscope<3 µm, open oval
42 Placoliths, smallPlacoliths small#Pospichal, James JCounting, light microscope4-5 µm, open oval
43 Syracosphaera spp.Syracosphaera spp.#Pospichal, James JCounting, light microscope
44 Umbilicosphaera spp.Umbilicosphaera spp.#Pospichal, James JCounting, light microscope
45 Umbilicosphaera cricotaU. cricota#Pospichal, James JCounting, light microscope
46 Pontosphaera spp.Pontosphaera spp.#Pospichal, James JCounting, light microscope
47 Discoaster spp.Discoaster spp.#Pospichal, James JCounting, light microscope6 ray
48 Discoaster cf. variabilisD. cf. variabilis#Pospichal, James JCounting, light microscope
49 Minylitha convallisM. convallis#Pospichal, James JCounting, light microscope
50 Reticulofenestra rotariaR. rotaria#Pospichal, James JCounting, light microscope
51 Sphenolithus abiesS. abies#Pospichal, James JCounting, light microscope
52 Cyclicargolithus floridanusC. floridanus#Pospichal, James JCounting, light microscope
53 Cyclicargolithus floridanusC. floridanus#Pospichal, James JCounting, light microscope>9 µm
54 Reticulofenestra hesslandiiR. hesslandii#Pospichal, James JCounting, light microscope
55 Helicosphaera carteriH. carteri#Pospichal, James JCounting, light microscope
56 Reticulofenestra daviesiiR. daviesi#Pospichal, James JCounting, light microscope
57 Coronocyclus nitescensC. nitescens#Pospichal, James JCounting, light microscope
58 Reticulofenestra cf. perplexaR. cf. perplexa#Pospichal, James JCounting, light microscope
59 Coccolithus spp.Coccolithus spp.#Pospichal, James JCounting, light microscope
60 Pontosphaera multiporaP. multipora#Pospichal, James JCounting, light microscope
61 Sphenolithus spp.Sphenolithus spp.#Pospichal, James JCounting, light microscope
62 Coccolithus pelagicus ssp. floralisC. pelagicus ssp. floralis#Pospichal, James JCounting, light microscope
63 Cyclicargolithus cf. floridanusC. cf. floridanus#Pospichal, James JCounting, light microscope
64 Discoaster deflandreiD. deflandrei#Pospichal, James JCounting, light microscope
65 Coccolithus miopelagicusC. miopelagicus#Pospichal, James JCounting, light microscope
66 Coccolithus pelagicusC. pelagicus#Pospichal, James JCounting, light microscope11-12 µm
67 Cyclicargolithus floridanusC. floridanus#Pospichal, James JCounting, light microscope<6 µm
68 Reticulofenestra cf. pseudoumbilicaR. cf. pseudoumbilica#Pospichal, James JCounting, light microscope
69 Sphenolithus cf. grandisS. cf. grandis#Pospichal, James JCounting, light microscope
70 Sphenolithus cf. dissimilisS. cf. dissimilis#Pospichal, James JCounting, light microscope
71 Discoaster cf. calculosusD. cf. calculosus#Pospichal, James JCounting, light microscope
72 Discoaster cf. deflandreiD. cf. deflandrei#Pospichal, James JCounting, light microscope
73 Discoaster deflandreiD. deflandrei#Pospichal, James JCounting, light microscopestellate knob
74 Reticulofenestra cf. ampliumbilicusR. cf. ampliumbilicus#Pospichal, James JCounting, light microscope
75 Cyclicargolithus abisectusC. abisectus#Pospichal, James JCounting, light microscope<10 µm
76 Helicosphaera spp.Helicosphaera spp.#Pospichal, James JCounting, light microscope
77 Helicosphaera aff. euphratisH. aff. euphratis#Pospichal, James JCounting, light microscope
78 Umbilicosphaera jafariU. jafari#Pospichal, James JCounting, light microscope
79 Nannofossils, reworked fossilNannos rew fossil#Pospichal, James JCounting, light microscopeCretaceous
80 Chiasmolithus spp.Chiasmolithus spp.#Pospichal, James JCounting, light microscopereworked
81 Reticulofenestra bisectaR. bisecta#Pospichal, James JCounting, light microscope>10 µm; reworked
82 Reticulofenestra samoduroviiR. samodurovii#Pospichal, James JCounting, light microscopereworked
83 Reticulofenestra umbilicusR. umbilicus#Pospichal, James JCounting, light microscopereworked
84 Sample commentSample commentPospichal, James JCounting, light microscope
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
12261 data points

Data

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

1 
Event		2 
Sample label
(DSDP/ODP/IODP sample designation)		3 
Depth sed [m]		4 
Nannos zone		5 
Epoch		6 
Nannos [#]
(total abundance)		7 
Nannos preserv
(G = good, M = moderate, P = poor)		8 
S
(Counting, light microscope)		9 
C. leptoporus [#]
(Counting, light microscope)		10 
C. pelagicus [#]
(Counting, light microscope)		11 
E. huxleyi [#]
(Counting, light microscope)		12 
G. aperta [#]
(Counting, light microscope)		13 
G. caribbeanica [#]
(<4 µm, Counting, light micros...)		14 
G. caribbeanica [#]
(4-5.5 µm, Counting, light mic...)		15 
G. caribbeanica [#]
(5.5-6.5 µm, Counting, light m...)		16 
G. oceanica [#]
(<4 µm, Counting, light micros...)		17 
G. oceanica [#]
(4-5.5 µm, Counting, light mic...)		18 
G. oceanica [#]
(5.5-6.5 µm, Counting, light m...)		19 
G. ericsonii [#]
(Counting, light microscope)		20 
G. parallela [#]
(Counting, light microscope)		21 
Gephyrocapsa spp. [#]
(Counting, light microscope)		22 
H. carteri [#]
(Counting, light microscope)		23 
U. sibogae var. foliosa [#]
(Counting, light microscope)		24 
C. pelagicus [#]
(w/ bar, Counting, light micro...)		25 
P. ovata [#]
(Counting, light microscope)		26 
P. lacunosa [#]
(Counting, light microscope)		27 
R. asanoi [#]
(Counting, light microscope)		28 
R. perplexa [#]
(Counting, light microscope)		29 
R. producta [#]
(Counting, light microscope)		30 
R. pseudoumbilicus [#]
(Counting, light microscope)		31 
R. pseudoumbilicus [#]
(>10 µm, Counting, light micro...)		32 
R. gelida [#]
(Counting, light microscope)		33 
R. gelida [#]
(>10 µm, Counting, light micro...)		34 
R. minutula [#]
(5-8 µm, Counting, light micro...)		35 
R. minutula [#]
(3-5 µm, Counting, light micro...)		36 
Reticulofenestra spp. [#]
(Counting, light microscope)		37 
R. haqii [#]
(3-5 µm, Counting, light micro...)		38 
R. haqii [#]
(5-8 µm, Counting, light micro...)		39 
R. haqii [#]
(<3 µm, Counting, light micros...)		40 
R. minuta [#]
(Counting, light microscope)		41 
Placoliths small [#]
(<3 µm, open oval, Counting, l...)		42 
Placoliths small [#]
(4-5 µm, open oval, Counting, ...)		43 
Syracosphaera spp. [#]
(Counting, light microscope)		44 
Umbilicosphaera spp. [#]
(Counting, light microscope)		45 
U. cricota [#]
(Counting, light microscope)		46 
Pontosphaera spp. [#]
(Counting, light microscope)		47 
Discoaster spp. [#]
(6 ray, Counting, light micros...)		48 
D. cf. variabilis [#]
(Counting, light microscope)		49 
M. convallis [#]
(Counting, light microscope)		50 
R. rotaria [#]
(Counting, light microscope)		51 
S. abies [#]
(Counting, light microscope)		52 
C. floridanus [#]
(Counting, light microscope)		53 
C. floridanus [#]
(>9 µm, Counting, light micros...)		54 
R. hesslandii [#]
(Counting, light microscope)		55 
H. carteri [#]
(Counting, light microscope)		56 
R. daviesi [#]
(Counting, light microscope)		57 
C. nitescens [#]
(Counting, light microscope)		58 
R. cf. perplexa [#]
(Counting, light microscope)		59 
Coccolithus spp. [#]
(Counting, light microscope)		60 
P. multipora [#]
(Counting, light microscope)		61 
Sphenolithus spp. [#]
(Counting, light microscope)		62 
C. pelagicus ssp. floralis [#]
(Counting, light microscope)		63 
C. cf. floridanus [#]
(Counting, light microscope)		64 
D. deflandrei [#]
(Counting, light microscope)		65 
C. miopelagicus [#]
(Counting, light microscope)		66 
C. pelagicus [#]
(11-12 µm, Counting, light mic...)		67 
C. floridanus [#]
(<6 µm, Counting, light micros...)		68 
R. cf. pseudoumbilica [#]
(Counting, light microscope)		69 
S. cf. grandis [#]
(Counting, light microscope)		70 
S. cf. dissimilis [#]
(Counting, light microscope)		71 
D. cf. calculosus [#]
(Counting, light microscope)		72 
D. cf. deflandrei [#]
(Counting, light microscope)		73 
D. deflandrei [#]
(stellate knob, Counting, ligh...)		74 
R. cf. ampliumbilicus [#]
(Counting, light microscope)		75 
C. abisectus [#]
(<10 µm, Counting, light micro...)		76 
Helicosphaera spp. [#]
(Counting, light microscope)		77 
H. aff. euphratis [#]
(Counting, light microscope)		78 
U. jafari [#]
(Counting, light microscope)		79 
Nannos rew fossil [#]
(Cretaceous, Counting, light m...)		80 
Chiasmolithus spp. [#]
(reworked, Counting, light mic...)		81 
R. bisecta [#]
(>10 µm; reworked, Counting, l...)		82 
R. samodurovii [#]
(reworked, Counting, light mic...)		83 
R. umbilicus [#]
(reworked, Counting, light mic...)		84 
Sample comment
(Counting, light microscope)
188-1165A 188-1165A-1H-1,20-210.200CN15Pleistocene35M-G163210111042010211000001000010200002000000000000000000000000000000000000010000In E. huxleyi NN21 (CN15)
188-1165B 188-1165B-1H-1,21-220.215CN15Pleistocene17M-G12211110012101200000010000000000003000000000000000000000000000000000000000000
188-1165B188-1165B-1H-1,97-980.975CN14bPleistocene6M5200000011000100000010000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-1H-2,21-221.715CN14bPleistocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-1H-3,21-223.215CN14bPleistocene4M4010000000000000000010000010100000000000000000000000000000000000000000000000Reworked reticulofenestrids
188-1165B188-1165B-1H-4,21-224.715CN14bPleistocene28M12560000011000100200010100010110000700000000000000000000000000000000000000000Reworked reticulofenestrids
188-1165B188-1165B-1H-CC,15-206.810CN14a- CN13bPleistocene174P-M1110500000000000710601001000000001000033010000000000000000000000000000000000000000NN19/CN14a; P. lacunosa; single R. asanoi; strong etching
188-1165B188-1165B-2H-1,97-987.775CN14a- CN13bPleistocene353M16108000150205001200010040101000000010000152510000000000000000000000000000000000000000NN19/CN13b assemblage; few larger (6 µm) G. caribbeanica
188-1165B188-1165B-2H-2,97-989.275CN14a- CN13bPleistocene334P-M1410800045000300015008025000100110001000045000000000000000000000000000000000000000000
188-1165B188-1165B-2H-3,97-9810.775CN14a- CN13bPleistocene117P-M14230003710100020010301000000101000055000000000000000000000000000000000000000000
188-1165B188-1165B-2H-4,97-9812.275CN14a- CN13bPleistocene127P-M1361200181010400016003400010000000000005011000000000000000000000000000000000000000
188-1165B188-1165B-2H-5,21-2213.015CN14a- CN13bPleistocene96M1421200062100003001410010000100000016000100000000000000000000000000000000000000
188-1165B188-1165B-2H-6,21-2214.515CN14a- CN13bPleistocene/Pliocene12P-M9030011000000100000001001000000001200010000000000000000000000000000000000000
188-1165B188-1165B-2H-7,21-2216.015CN13a- CN10Pleistocene/Pliocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-14H-6,60-61123.665CN13a- CN10/CN5b- CN9bPliocene/late Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-14H-6,97-98124.035CN13a- CN10/CN5b- CN9bPliocene/late Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-14H-CC,34-44124.510CN5b- CN9blate Miocene1285M201150000000000000000001000100212181004010300002321100000000000000000000000000001010R. perplexa dominant; rare M. convallis; NN9-NN11a, CN7-CN9a
188-1165B188-1165B-15H-1,21-22125.515CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-15H-CC,14-24128.580CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-16H-1,21-22129.015CN5b- CN9blate Miocene8P-M5020000000000000000031001000100000000000000000000000000000000000000000000000
188-1165B188-1165B-16H-2,21-22130.515CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-16H-3,21-22132.015CN5b- CN9blate Miocene2M2100000000000000000010000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-16H-4,21-22132.255CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-20X-5,21-22162.415CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-20X-5,117-118163.375CN5b- CN9blate Miocene3690P-M901000000000000000000240012000000102510230300000000000000000000000000000000000000000000Very abundant R. perplexa and R. producta
188-1165B188-1165B-20X-6,21-22163.915CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-21X-4,21-22170.515CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-21X-5,21-22172.015CN5b- CN9blate Miocene1P-M1000000000000000000000000000001000000000000000000000000000000000000000000000
188-1165B188-1165B-21X-CC,22-32172.670CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-22X-1,21-22175.715CN5b- CN9blate Miocene2P-M2000000000000000000000000000010000100000000000000000000000000000000000000000
188-1165B188-1165B-22X-2,21-22177.215CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-24X-3,21-22197.915CN5b- CN9blate Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-24X-3,97-98198.675CN5b- CN9blate/middle Miocene8868M1202000000000000000000500080020522251000200010020000000000000000000000000000000000000000000Notable increase in Reticulofenestra diversity; R. hesslandii?
188-1165B188-1165B-24X-CC,40-50199.150CN5b- CN9bmiddle Miocene13009P-M725000000000000000001200080000000120001000000000000000000000000000000000000000000000Monospecific assemblage
188-1165B188-1165B-26X-CC,0-1213.900CN5b- CN9bmiddle Miocene648M100100000000000000000600100000125141140000000000000000000000000000000000000000000
188-1165B188-1165B-27X-1,21-22223.715CN5b- CN9b/CN5amiddle Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-27X-2,21-22225.215CN5b- CN9b/CN5amiddle Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-27X-6,21-22231.215CN5b- CN9b/CN5amiddle Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-27X-CC,14-19231.690CN5b- CN9b/CN5amiddle Miocene6P-M3000000000000000000041000000001000000000000000000000000000000000000000000000
188-1165B188-1165B-28X-1,21-22233.315CN5amiddle Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-57X-CC,21-26504.610CN5aearly Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-58X-1,100-101512.005CN5aearly Miocene1724M120800000000000000000504000025016001000120000000000020400000000000000000000000000000Highest C. floridanus; CN5a or older
188-1165B188-1165B-58X-2,34-35512.845early Miocene8123M2016000000000000000000080100100500300100004000160030050000000000011521010000000000000000000000001011
188-1165B188-1165B-58X-CC,7-17516.030early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-59X-1,35-39521.050early Miocene1177M1206000000000000000000210001050100030060025250000000000000103000000000000000000000000000Larger reticulofenestrids and C. floridanus drop out; R. daviesi (reworked?)
188-1165B188-1165B-59X-2,8-9522.285early Miocene32M80200000000000000000131000420316000000000000000000000000000000000000000000000
188-1165B188-1165B-59X-CC,0-5527.920early Miocene6M4000000000000000000000001010013000000000000000000000000000000000000000000000
188-1165B188-1165B-60X-1,18-19530.485early Miocene1P-M1000000000000000000000000000010000000000000000000000000000000000000000000000
188-1165B188-1165B-60X-CC,18-23534.600early Miocene19P-M11000000000000000000011104101142100000000000000200000000000000000000000000000Large R. gelida types; R. hesslandii?; questionable C. floridanus
188-1165B188-1165B-61X-CC,15-25541.650early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-62X-1,102-103550.625early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-62X-3,54-55553.145early Miocene12M8010000000000000000010001021032000000000000000100000000000000000000000000000Marginal R. perplexa specimen
188-1165B188-1165B-62X-CC,0-5553.800early Miocene1M1000000000000000000000000000001000000000000000000000000000000000000000000000
188-1165B188-1165B-63X-CC,24-29559.440early Miocene29P90100000000000000000001010102120000000000000010100000000000000000000000000000Questionable R. perplexa; strongly overgrown nannofossils
188-1165B188-1165B-64X-1,50-51569.305early Miocene25M80100000000000000000201010201512000000000000000000000000000000000000000000000
188-1165B188-1165B-64X-2,106-107571.365early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-64X-CC,0-10572.080early Miocene2M2000000000000000000000000001100000000000000000000000000000000000000000000000
188-1165B188-1165B-65X-CC,0-5579.170early Miocene2M2000000000000000000000000000100000000000000000000100000000000000000000000000
188-1165B188-1165B-66X-CC,37-43597.690early Miocene2M2000000000000000000000000000110000000000000000000000000000000000000000000000
188-1165B188-1165B-67X-CC,18-23606.160early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-68X-CC,24-34608.170early Miocene1P1000000000000000000000000000100000000000000000000000000000000000000000000000
188-1165B188-1165B-74X-1,26-27655.665early Miocene5P-M5000000000000000000000000000111000000000000000100010000000000000000000000000Questionable C. floridanus; rare R. cf. perplexa
188-1165B188-1165B-74X-CC,30-35659.130early Miocene6M4000000000000000000000000010113000000000000000000000000000000000000000000000
188-1165B188-1165B-75X-1,6-7665.065early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-75X-CC,24-34665.900early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165B188-1165B-76X-CC,36-46674.960early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C 188-1165C-2R-CC,18-28678.680early Miocene15P-M8010000000000000000001000000017000000000000000100012100000000000000000000000C. pelagicus floralis?; large R. hesslandii (8-9 µm)
188-1165C188-1165C-3R-CC,13-23690.890early Miocene1P-M1000000000000000000000000000100000000000000000000000000000000000000000000000
188-1165C188-1165C-4R-CC,17-22700.630early Miocene1M1000000000000000000000000000000000000000000000000010000000000000000000000000
188-1165C188-1165C-5R-3,85-87705.090early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-5R-5,111-112708.195early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-5R-CC,0-10709.810early Miocene20P-M90000000000000000000001010101110000000000000000100031000000000000000000000000Questionable C. floridanus
188-1165C188-1165C-6R-3,85-86714.715early Miocene201P200000000000000000000000000020000000000000000000000000010000000000000000000000Strong recrystallization, overgrown R. haqii? common
188-1165C188-1165C-6R-CC,7-17719.490early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-7R-CC,11-16727.830early Miocene29M15030000000000000000021102011227000000000000000101020012000000000000000000000Large R. perplexa (7-8 µm); R. scrippsae of some workers
188-1165C188-1165C-8R-1,44-45730.645early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-8R-CC,0-10738.850early Miocene9M-G6010000000000000000001001010004000000000000000000010000000000000000000000000
188-1165C188-1165C-9R-1,19-20740.095early Miocene1M1000000000000000000000000000001000000000000000000000000000000000000000000000
188-1165C188-1165C-9R-3,19-20743.055early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-9R-5,19-20746.055early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-9R-CC,0-10748.890early Miocene29M110100000000000000000300040112310000000000000000102010000000000000000000000000
188-1165C188-1165C-11R-5,19-20765.295early Miocene17M4020000000000000000000000000047000000000000000000040000000000000000000000000
188-1165C188-1165C-11R-CC,7-12766.530early Miocene5M4000000000000000000000000000112000000000000000000010000000000000000000000000
188-1165C188-1165C-12R-1,19-20768.895early Miocene2M2000000000000000000000000000011000000000000000000000000000000000000000000000
188-1165C188-1165C-12R-3,19-20771.895early Miocene5P-M3000000000000000000000000000113000000000000000000000000000000000000000000000
188-1165C188-1165C-12R-4,24-26773.450early Miocene321P-M1502500000000000000000111030442550200000000000000010200020000110000000000000000000R. pseudoumbilica present; NN3 or younger
188-1165C188-1165C-12R-5,19-20765.295early Miocene1M1000000000000000000000001000000000000000000000000000000000000000000000000000
188-1165C188-1165C-12R-7,16-17777.865early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-12R-CC,17-22778.370early Miocene21M7070000000000000000010000000214000000000000000200040000000000000000000000000Questionable C. floridanus
188-1165C188-1165C-13R-1,19-20778.495early Miocene1M1000000000000000000000000000000000000000000000000010000000000000000000000000
188-1165C188-1165C-13R-3,19-20781.495early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-13R-CC,0-5783.140early Miocene96M13025000000000000000002300200016250000000000000103110250000100000000000000000000
188-1165C188-1165C-14R-1,19-20788.195early Miocene1P1000000000000000000000000000100000000000000000000000000000000000000000000000
188-1165C188-1165C-14R-3,19-20791.195early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-14R-5,19-20794.195early Miocene5P-M4010000000000000000000000000001000000000000000010020000000000000000000000000
188-1165C188-1165C-14R-6,3-4795.535early Miocene1P1000000000000000000000000000100000000000000000000000000000000000000000000000High carbonate content; no nannofossils
188-1165C188-1165C-14R-CC,20-25797.200early Miocene49M1102000000000000000005100000052101000000000001001000200000100000000000000000000
188-1165C188-1165C-15R-1,19-20797.795early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-15R-3,19-20800.795early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-15R-5,19-20803.795early Miocene2P-M2000000000000000000000000000100000000000000000000010000000000000000000000000
188-1165C188-1165C-17R-1,19-20816.695early Miocene2M1000000000000000000000000000000000000000000000000020000000000000000000000000
188-1165C188-1165C-17R-3,19-20819.695early Miocene10M8010000000000000000011000000113000000000000000000010000000000000000000000000
188-1165C188-1165C-17R-CC,12-22822.070early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-18R-1,19-20826.295early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-18R-3,19-20829.295early Miocene3M3010000000000000000000000000010000000000000000000010000000000000000000000000
188-1165C188-1165C-18R-3,47-48829.575early Miocene1047M210200000000000000000003005000000112501100000000001101100500000012011110000000000000
188-1165C188-1165C-18R-4,51-52831.115early Miocene3865M23010000000000000000000012001200000012230132000000000062021000000002340010001212000000000
188-1165C188-1165C-18R-5,19-20832.295early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-18R-7,19-20835.295early Miocene1M1010000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-18R-CC,0-5835.800early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-19R-1,19-20835.895early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-19R-3,19-20838.895early Miocene4M3020000000000000000010000000000000000000000000000000000000100000000000000000
188-1165C188-1165C-19R-5,19-20841.895early Miocene7M4000000000000000000040000000100000000000000000000010000000100000000000000000
188-1165C188-1165C-19R-7,19-20844.895early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-19R-CC,0-10845.420early Miocene20M7040000000000000000082000000010010000000000000000020000000200000000000000000
188-1165C188-1165C-21R-1,44-45855.445early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-21R-3,19-20858.195early Miocene29M70100000000000000000054000000600000000000000000000010000000200000000000000000
188-1165C188-1165C-22R-CC,0-10874.370early Miocene80M11020000000000000000001230000000741000000000000010000010000001200000000000000100R. bisectus 12 µm (reworked)
188-1165C188-1165C-23R-1,19-20874.490early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-26R-1,19-20903.395early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-26R-3,19-20906.395early Miocene11M5020000000000000000014000000130000000000000000000000000000000000000000000000
188-1165C188-1165C-26R-3,107-108907.275early Miocene10M6020000000000000000031000000210000000000000000000010000000000000000000000000
188-1165C188-1165C-26R-CC,0-5907.320early Miocene17M6020000000000000000038000000201000000000000000000010000000000000000000000000
188-1165C188-1165C-27R-1,19-20912.995early Miocene3M2020000000000000000001000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-27R-2,104-105915.345early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-27R-5,19-20918.995early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-27R-CC,12-17919.780CN3?early Miocene11M8020000000000000000002000000200100000010000010000010000000000000000100000000Small C. abisectus; Pontosphaera sp.
188-1165C188-1165C-28R-1,19-20922.695CN3?early Miocene2M2010000000000000000001000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-28R-3,19-20925.695CN3?early Miocene6M5010000000000000000012000000110000000000000000000000000000000000000000000000
188-1165C188-1165C-28R-5,133-134929.855early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-28R-CC,10-20930.650early Miocene46M702000000000000000004200000001250200000010000000000000000000000000000000000000Pontosphaera cf. pectinata
188-1165C188-1165C-29R-1,19-20931.895early Miocene80M904000000000000000001400000002530000000000000112000000000000000000000300000000Few small C. abisectus morphotypes; questionable T. carinatus
188-1165C188-1165C-29R-3,19-20934.895early Miocene6M5010000000000000000002000000110000000000000000000000000000000000000100000000
188-1165C188-1165C-29R-5,19-20937.895early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-29R-7,19-20940.895early Miocene4M3010000000000000000000000000120000000000000000000000000000000000000000000000
188-1165C188-1165C-29R-CC,6-11941.420early Miocene12M7010000000000000000024000000210000000000000000000000000000010000000010000000
188-1165C188-1165C-30R-1,19-20941.495early Miocene9M7010000000000000000012000001210010000000000000000000000000000000000000000000
188-1165C188-1165C-30R-3,19-20944.495early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-30R-5,19-20947.495early Miocene8M5010000000000000000012000000300000000000000000000000000000000000000100000000
188-1165C188-1165C-30R-CC,20-25950.500early Miocene2P-M2000000000000000000000000000010000000000000000000010000000000000000000000000
188-1165C188-1165C-31R-1,23-24951.235early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-31R-3,19-20954.195early Miocene9P-M4030000000000000000001000000410000000000000000000000000000000000000000000000
188-1165C188-1165C-31R-5,19-20957.195early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-31R-5,130-140958.300early Miocene10M6040000000000000000002000000100000000000000010000010000000000000000100000000
188-1165C188-1165C-32R-1,19-20960.795early Miocene25M70200000000000000000160000001210000000000000001000020000000000000000000000000
188-1165C188-1165C-32R-3,19-20963.795early Miocene13M7030000000000000000012000000220000000000000010000020000000000000000000000000
188-1165C188-1165C-32R-CC,5-15964.060early Miocene7M6000000000000000000010000000210000000000000000010000010100000000000000000000Odd (overgrown?) sphenoliths
188-1165C188-1165C-33R-1,19-20970.395early Miocene8M5010000000000000000013000000200000000000000000000010000000000000000000000000
188-1165C188-1165C-35R-1,19-20989.695early Miocene64M13015000000000000000001250000001000000000000000011010030100000000000000311100000H. aff. carteri; H. aff. euphratis
188-1165C188-1165C-35R-1,106-107990.565early Miocene19P-M60200000000000000000110000000300000000000000010000020000000000000000000000000
188-1165C188-1165C-35R-3,19-20992.695early Miocene17M50200000000000000000010000000300000000000000010000010000000000000000000000000
188-1165C188-1165C-35R-6,84-87997.855CN1?early Miocene00000000000000000000000000000000000000000000000000000000000000000000000000000
188-1165C188-1165C-35R-CC,0-5998.220CN1?early Miocene3P-M3010000000000000000000000000100000000000000010000000000000000000000000000000Last sample; in lower Miocene (CN1-CN4)