[Folda] Fwd: [Jhi] Reminder: Friday seminar - today, 12.30 - Bryndís Brandsdóttir ‘The northern Kolbeinsey Ridge; ridge segmentation, rifting and volcanism’

[Deirdre Clark]

Today's Friday seminar!

---------- Forwarded message ----------
From: Maren Kahl <marenk at hi.is>
Date: Fri, Nov 4, 2016 at 10:15 AM
Subject: [Jhi] Reminder: Friday seminar - today, 12.30 - Bryndís
Brandsdóttir ‘The northern Kolbeinsey Ridge; ridge segmentation, rifting
and volcanism’
To: jhi at hi.is


Dear all,



This is a quick reminder that the seminar series will continue today at
12:30 in the seminar room on the 3rd floor with a presentation given by:



*Bryndís Brandsdóttir* *‘The northern Kolbeinsey Ridge; ridge segmentation,
rifting and volcanism’*



Plate accretion at mid-ocean ridges is thought to be characterized by
cyclic bouts of magmatic extrusion and intrusion separated by periods when
tectonic activity accounts for plate separation. Using high-resolution
acoustic backscatter intensity as a proxy for sediment thickness provides a
viable tool to estimate relative age of ridge axis lavas in regions of high
glacial and post-glacial sedimentation rates.



I will present preliminary results from the POS502 research cruise to the
N-Kolbeinsey Ridge this summer. The main goal of the cruise was to map in
detail the morphological variations of seafloor lava flows and their effect
on hydro-acoustic properties using a high resolution photographs using a
DeepSurveyCam System mounted on the ROV. Individual lava flows were also
sampled in order to determine their age and for geochemical analyses.







Best,



Maren & Maria














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-- 
Deirdre Clark, PhD Research Fellow
University of Iceland | Háskóli Íslands
Institute of Earth Sciences
Sturlugata 7, Askja, Room 235
101 Reykjavík, Iceland

+354 525 4275 (Office)
+354 690 5745 (Mobile)
dec2 at hi.is
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