Auxiliary Materials for Paper 2009GC002933


Lava deposition history in ODP Hole 1256D: Insights from log-based volcanostratigraph


Masako Tominaga
Department of Oceanography, Texas A&M University, College Station, Texas, USA 
Now at Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA

Susumu Umino
Department of Earth Sciences, Kanazawa University, Kanazawa, Japan


Tominaga, M., and S. Umino (2010), Lava deposition history in ODP Hole 1256D: Insights from log-based volcanostratigraphy, Geochem. Geophys. Geosyst., 11, Q05003, doi:10.1029/2009GC002933.


1. 2009gc002933-fs01.jpg
Figure S1.
A. Detailed track lines of Shinkai 6500 dives. 

B. Track 1.
B1. Flow directions (arrows) and fissures  along the track line 1.
B2. Plain view of descriptive lava flow types along the track line 1.
B3. Flow types along dive track 1. X-axis indicates the distance of dive track from
start point of the dive. Left Y-axis indicates water depth. Right Y-axis indicates
slope angle in degree. Purple-bars indicate the slope angle where each flow observed.
Bule circles (lobate) and orange circles (Pahoehoe) indicate sheet flows. Pink plus (knobby), orange
cross (bulbous), and green diamond (elongate) marks indicate pillows. It is clear that
the appearence of pillow groups is located the slope with more than 6 degree angle. 


C. Track 2.
C1. Flow directions (arrows) and fissures along the track line 2.
C2. Plain view of descriptive lava flow types along the track line 2.
C3. Flow types along dive track 2. X-axis indicates the distance of dive track from
start point of the dive. Left Y-axis indicates water depth. Right Y-axis indicates
slope angle in degree. Purple-bars indicate the slope angle where each flow observed.
Bule circles (lobate) and orange circles (Pahoehoe) indicate sheet flows. Pink plus (knobby), orange
cross (bulbous), and green diamond (elongate) marks indicate pillows. It is clear that
the appearence of pillow groups is located the slope with more than 6 degree angle. 


More legends are indicated next to part C3. 


2. 2009gc002933-fs02.jpg
Figure S2. Viscosity measurements of glass part of pillow and sheet (pahoehoe and lobate) flows from
samples obtained during dives. Note that the Viscosity scale is in logalithmic.