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Thal, Janis; Tivey, Maurice; Yoerger, Dana; Jöns, Niels; Bach, Wolfgang (2015): (Supplement S1) Silicon oxide and Potassium + Sodium oxide from the PACManus hydrothermal area [dataset]. MARUM - Center for Marine Environmental Sciences, University Bremen, PANGAEA, https://doi.org/10.1594/PANGAEA.855519, Supplement to: Thal, J et al. (2014): Geologic setting of PACManus hydrothermal area — High resolution mapping and in situ observations. Marine Geology, 355, 98-114, https://doi.org/10.1016/j.margeo.2014.05.011

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Abstract:
This study presents a systematic analysis and interpretation of autonomous underwater vehicle-based microbathymetry combined with remotely operated vehicle (ROV) video recordings, rock analyses and temperaturemeasurements within the PACManus hydrothermal area located on Pual Ridge in the Bismarck Sea of eastern Manus Basin. The data obtained during research cruise Magellan-06 and So-216 provides a framework for understanding the relationship between the volcanism, tectonismand hydrothermal activity. PACManus is a submarine felsic vocanically-hosted hydrothermal area that hosts multiple vent fields locatedwithin several hundredmeters of one another but with different fluid chemistries, vent temperatures and morphologies. The total area of hydrothermal activity is estimated to be 20,279m**2. Themicrobathymetrymaps combinedwith the ROV video observations allow for precise high-resolution mapping estimates of the areal extents of hydrothermal activity.We find the distribution of hydrothermal fields in the PACManus area is primarily controlled by volcanic features that include lava domes, thick andmassive blocky lava flows, breccias and feeder dykes. Spatial variation in the permeability of local volcanic facies appears to control the distribution of venting within a field.We define a three-stage chronological sequence for the volcanic evolution of the PACManus based on lava flow morphology, sediment cover and lava SiO2 concentration. In Stage-1, sparsely to moderately porphyritic dacite lavas (68-69.8 wt.% SiO2) erupted to form domes or cryptodomes. In Stage-2, aphyric lava with slightly lower SiO2 concentrations (67.2-67.9 wt.% SiO2) formed jumbled and pillowed lava flows. In the most recent phase Stage-3, massive blocky lavaswith 69 to 72.5wt.% SiO2were erupted throughmultiple vents constructing a volcanic ridge identified as the PACManus neovolcanic zone. The transition between these stages may be gradual and related to progressive heating of a silicic magma following a recharge event of hot, mantle-derived melts.
Related to:
Monecke, Thomas; Giorgetti, Giovanna; Scholtysek, O; Kleeberg, Reinhard; Götze, J; Hannington, Mark D; Petersen, Sven (2007): Textural and mineralogical changes associated with the incipient hydrothermal alteration of glassy dacite at the submarine PACMANUS hydrothermal system, eastern Manus Basin. Journal of Volcanology and Geothermal Research, 160(1-2), 23-41, https://doi.org/10.1016/j.jvolgeores.2006.08.007
Paulick, Holger (2006): Phyllosilicate Alteration Mineral Assemblages in the Active Subsea-Floor Pacmanus Hydrothermal System, Papua New Guinea, ODP Leg 193. Economic Geology, 101(3), 633-650, https://doi.org/10.2113/gsecongeo.101.3.633
Coverage:
Median Latitude: -3.738083 * Median Longitude: 151.336199 * South-bound Latitude: -3.750000 * West-bound Longitude: 151.000000 * North-bound Latitude: -3.720700 * East-bound Longitude: 151.676800
Date/Time Start: 2000-11-18T17:30:00 * Date/Time End: 2011-07-06T10:30:00
Minimum Elevation: -1738.2 m * Maximum Elevation: -1619.3 m
Event(s):
193-1188A  * Latitude: -3.728300 * Longitude: 151.669900 * Date/Time Start: 2000-11-18T17:30:00 * Date/Time End: 2000-11-22T08:30:00 * Elevation: -1640.2 m * Penetration: 211.6 m * Recovery: 21.93 m * Location: Bismarck Sea * Campaign: Leg193 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 211.6 m cored; 0 m drilled; 10.4 % recovery
193-1189A  * Latitude: -3.720700 * Longitude: 151.674900 * Date/Time Start: 2000-11-22T08:30:00 * Date/Time End: 2000-11-23T20:45:00 * Elevation: -1690.2 m * Penetration: 125.8 m * Recovery: 8.58 m * Location: Bismarck Sea * Campaign: Leg193 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 125.8 m cored; 0 m drilled; 6.8 % recovery
193-1190C  * Latitude: -3.721730 * Longitude: 151.676800 * Date/Time Start: 2000-11-24T11:00:00 * Date/Time End: 2000-11-25T05:30:00 * Elevation: -1696.1 m * Penetration: 17.2 m * Recovery: 0.4 m * Location: Bismarck Sea * Campaign: Leg193 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 17.2 m cored; 0 m drilled; 2.3 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventThal, Janis
Date/Time of eventDate/TimeThal, Janis
Latitude of eventLatitudeThal, Janis
Longitude of eventLongitudeThal, Janis
Method/Device of eventMethod/DeviceThal, Janis
Reference of dataRef dataThal, Janis
Sample code/labelSample labelThal, Janis
LocationLocationThal, Janis
Silicon dioxideSiO2%Thal, JanisElectron microprobe JEOL JXA 8900R
10 Silicon dioxideSiO2%Thal, JanisElectron microprobe JEOL JXA 8900R
11 Potassium oxide and Sodium oxideK2O + Na2O%Thal, JanisElectron microprobe JEOL JXA 8900R
12 Potassium oxide and Sodium oxideK2O + Na2O%Thal, JanisElectron microprobe JEOL JXA 8900R
Size:
116 data points

Data

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


Event

Date/Time

Latitude

Longitude

Method/Device

Ref data

Sample label

Location

SiO2 [%]
10 
SiO2 [%]
11 
K2O + Na2O [%]
12 
K2O + Na2O [%]
J2-208 2006-08-02T09:26-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-208-5-R1Roman Ruins71.46.70
J2-209 2006-08-03T09:35-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-209-9-R1Satanic Mills67.96.30
J2-210 2006-08-04T10:23-3.7500151.0000Remote operated vehicle Jason IIJ2-210-3-r1Snowcap69.87.00
J2-2102006-08-04T10:23-3.7500151.0000Remote operated vehicle Jason IIJ2-210-6-R1Fenway dome68.96.70
J2-211 2006-08-05T08:06-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-211-2-R2Tsukushi67.46.20
J2-2112006-08-05T08:06-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-211-3-R1Neovolcanic zone72.56.80
J2-2112006-08-05T08:06-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-211-8-R1W-Snowcap ridge67.76.20
J2-212 2006-08-06T09:16-3.7500151.0000Remote operated vehicle Jason IIJ2-212-8-R1Fenway70.46.40
J2-213 2006-08-07T09:02-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-213-4-R1Roman Ruins64.45.90
J2-214 2006-08-08T08:04-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-214-7-R1Snowcap68.16.60
J2-2142006-08-08T08:04-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-214-8-R1Crater (Snowcap)70.16.60
J2-2142006-08-08T08:04-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-214-9-R1S of W-Snowcap ridge67.26.30
J2-216 2006-08-10T10:10-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-216-11-R1Fenway64.16.00
J2-222 2006-08-17T08:03-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-222-11-R1Neovolcanic zone71.86.60
J2-2222006-08-17T08:03-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-222-12-R1Neovolcanic zone71.36.80
J2-2222006-08-17T08:03-3.7500151.0000Remote operated vehicle Jason IINiedermeyer et al. (unpublished)J2-222-9-R2Roman Ruins73.36.80
193-1188A 2000-11-18T17:30-3.7283151.6699Drilling/drill rigPaulick et al. (2004)ODP 1188ASnowcap68.36.60
193-1189A 2000-11-22T08:30-3.7207151.6749Drilling/drill rigPaulick et al. (2004)ODP 1189ARoman Ruins62.85.80
193-1190C 2000-11-24T11:00-3.7217151.6768Drilling/drill rigPaulick et al. (2004)ODP 1190CSE of Roman Ruins67.86.70
193-1191A 2000-11-27T14:00-3.7268151.6723Drilling/drill rigPaulick et al. (2004)ODP 1191ASatanic Mills69.06.60
SO166_58GTV 2002-09-29T00:00-3.7270151.6719Television-GrabMonecke et al. (2007)SO-166-58GTVSatanic Mills69.270.16.576.61
SO216-41-1 2011-07-04T22:00-3.7285151.6725Remote operated vehicleSO-216-041-rov-1Fenway dome67.76.90
SO216-43-1 2011-07-05T22:38-3.7263151.6720Remote operated vehicleSO-216-43-rov-10Snowcap66.66.40
SO216-43-12011-07-05T22:38-3.7263151.6720Remote operated vehicleSO-216-43-rov-11W-Snowcap ridge67.96.20