EarthScope+Seminar++
4 +
+
Topic:'Magnetotellurics'
4 Several+minute+delay+setting+up+computers+
4 Discussed+Hill+2009+Paper+
o Figure+1++
Discussed+source+of+data+for+contours+
Perhaps+previous+data+(Egbert+&+ Booker)+
Seems+to+be+a+lot+of+interpretation+for+northern+part,+as+main+array+is+in+
southern+part+and+only+one+station/measurement+is+in+the+northern+part+
Not+much+data+displayed +in+area+of+dense+array+to+southwest+
Cut+out+size+and+scale+do+not+appear+to+be+exact+with+regional+map.++Slopp y?+
o Figure+2++
Same+Model+–+Differen t+shading +colors.++Confusing++
Data+shown+in+W.+and+S.+portions+not+included+in+Figure+1+(i.e.+no+deep+blue)+
Skew+angle+represents+change+jus t+E+of+ Mt.+St .+Helens,+which+indicates+a+
potential+magma+source+located+between+the+three+volcanoes+
o Figure+3+
Color+coding:+Red+=+High+condu ctivity+
Figure+shows+reservoir,+but+NOT+deeper+reservoir+source+
Perhaps+longer+period+source+would+reveal+source.+
o Figure+4+
Reservoir+not+clear/strong+(i.e.+not+deep+red)+
Inconsistent+with+Figure+3?++Maybe+data+sensitivity+issue+
Red+at+surface+E+of+Adams.++Potential+water+table?+
4 Discussed+Patro+2008+
o Figure+2+
Figure+summarizes+main+point+of+entire+paper+
Used+seismicity+study+to+generate+left+figure+&+compared+to+their+data.++It+
agrees.+
Discussed+Seletzia+placement+and+apparent+slab+dip+placement/angle.+
o Figure+3+
Depth+of+peak+similar+for+each+province+
High+conductivity+at+lower+crust+can+potentially+mas k+lower+mantle+
Does+C2+in+Patro+relate+to+Hill+2009+findings?++It+is+possible,+but+wavelengths+
used+in+two+studies+not+compatible,+Hill+data+located+between+2+Patro+stations.+
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