********************************
LAST CALL for CEV workshop on "Pyroclastic Density Currents and Topography":
March 22nd-29th, Tenerife.
From: Rebecca Williams <rw89@xxxxxxxxxxxxxxx>
********************************
This workshop has created a lot of interest - anyone else wishing to attend should please let Rebecca Williams know as soon as possible (email: densitycurrentsworkshop@xxxxxxxxxxxxxx ).
We would like advertise an upcoming IAVCEI Commission on Explosive
Volcanism Field Workshop on Tenerife, 22-29th March 2007.
"Density Currents and Topography"
Leaders:
Dr Mike Branney (Department of Geology, University of Leicester, UK)
Dr Richard Brown (Department of Earth Sciences, University of Bristol,
UK)
Contact person:
Rebecca Williams (University of Leicester, UK)
Email: densitycurrentsworkshop@xxxxxxxxxxxxxx
Location:
Tenerife, Canary Islands; accommodation Hotel Playa Sur, El Medano
Dates:
March 22-29th 2007 (7 days)
Cost:
£400 (including hotel accommodation, food, and local
transport)
Participants:
15-28 (max)
This 7-day field-workshop is aimed at sedimentologists, volcanologists,
experimentalists and modellers who work on turbidity currents,
pyroclastic density currents and granular flows. It is to consider how
granular density currents respond to irregular topography. How can
forensic analysis of field data be used to inform and ground-truth
models of natural density currents? Recent shifts in our understanding
will be reviewed, and we will critically assess what useful information
deposits can provide about current dynamics. The gentle flanks of
Tenerife in the Canary Islands preserve world-class deposits from a
variety of pyroclastic density currents that flowed across an irregular
landscape. Both fully dilute and granular-fluid-based types of density
current are recorded, ranging from short-lived pulses to sustained,
quasi-steady currents. Evidence for density stratification, development
of shifting thalwegs, waxing and waning flow conditions, intermittent
turbulence, and response to obstacles will be examined. Superb
continuous desert exposure permits the deposits of an individual
current to be traced widely both in a downcurrent direction and laterally
across topographic highs into valleys. How sustained currents evolve with
time, both locally and regionally, will be explored via successive
'snap-shot' views made possible by high-precision temporal correlation using
compositional zoning. Evidence for erosional and depositional
behaviour, by-passing, current wakes, and depositional diachroneity of single
flow-units will be examined. The workshop will be of particular
interest to volcanologists and to sedimentologists who work on turbidites and
ignimbrites and deposition of granular flows. Cheap flights to Tenerife (<US $380 rtn) are available from many UK and European airports.
More details and further deadlines (for payment) available via contact
Email.
Rebecca Williams
PhD Researcher
Department of Geology
University of Leicester
University Road
Leicester
LE1 7RH
rw89@xxxxxxxx
+44 (0)1162 525060
==============================================================
To unsubscribe from the volcano list, send the message:
signoff volcano
to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx
To contribute to the volcano list, send your message to:
volcano@xxxxxxxx Please do not send attachments.
==============================================================
