Geological investigaions of Piip submarine volcano
G.A.Cherkashev VNIIoceangeologiyaRussian Ministry of Natural Resources
and geological team
140°E
140°E50°N
50°N
60°N
60°N
70°N
70°N
160°E
160°E
180°
180°
160°W
160°W
Беринговоморе
Полигон АВулкан Пийпа
Чукотскоеморе
Ном
Охотскоеморе п-
овКамчатка
Methods
• side scan, geoacoustic profilograph, STD and methane zond – 3 profiles;
• acoustic sounding of bottom and water column (9 profiles);
• determination of mercury in the air (9 profiles) and water (any stations);
• sampling rocks and sediments by drag, grab and cores (11 stations).
Location of rock and sediment
sampling stations
• 1 - sediment cores• 2 – CTD stations• 3 – drag sampling
A03
A04A05a
A05bA05c
A07
A08
A09
A10
A11
A12
A13
167.18 167.2 167.22 167.24 167.26 167.28 167.3 167.32 167.3455.34
55.36
55.38
55.4
55.42
55.44
55.46
1 2 3
167°13’
167°13’
55°2
1’
55°2
1’
55°2
3’
55°2
3’
55°2
5’
55°2
5’
55°2
5’
55°2
5’
167°15’
167°15’
167°17’
167°17’
167°19’
167°19’
1
2
34
5
6
789
10
11
Side-scan profiles
HydroacousticHydroacoustic images of water column and gas flare above images of water column and gas flare above hydrothermal vent of North Pike ofhydrothermal vent of North Pike of PiipPiip Submarine VolcanoSubmarine Volcano
View and magnetic susseptibility of core A08
Red arrow – location of volcanic ash layer
Magnetic susseptibility
S ea S tation S ample Al, % Ca , % Fe , % Mn, % Co Cu Mo Ni Pt V Zn A02 pumice 4,36 1,88 2,14 0,13 26 71 2 33 0,26 65 67
A07/1 calcareous concretion 4,25 23,62 3,39 0,11 11 119 6 29
244 95
S ubma rine P iip
Volcano
A09
Hydrothe rmally changed andes ite 7,38 3,78 7,39 0,11 23 859 24
476 147Chukchi S ea 065B Fe-Mn nodules 2,37 2,18 17,07 14,35 302 25 179 142
1,46 382 342
Chemical composition of some rock and mineral samples
A02
A07A09 062B
Electron microscope (SEM) images of sulfide minerals from calcareous concretion
(A07 station)
sulfides