Geomorphology Weekly Notes 9-1.htm
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!-- Created from PDF via Acrobat SaveAsXML --> <!-- Mapping table version: 28-February-2003 --> <HTML> <HEAD> <META name="dc.title" content="Tectonic Forms" > <META name="dc.date" content="2009-08-13T11:35:01-04:00" > <META name="dc.date.modified" content="2009-08-13T11:35:04-04:00" > <META name="generator" content="Adobe Acrobat Exchange-Pro 7.8" > </HEAD> <BODY bgcolor=white text=black link=blue vlink=purple alink=fushia > <DIV class="Sect" ><DIV ><P align="justify" ><FONT size="+1" color="#000000"></B>Tectonic Forms<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Scarp- Steep or abrupt slope on cliff<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Fault scope (25 - 40) earth earthquake displacement<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">En Echelon - broken scarp - uplift<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Bottle necked wine glass<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Thrust fault - new mt. range<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Obsequent - scarp opposed<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Upthrust & high side<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Resequent slip fault - movement<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Parallel to strike - ridges in echelon<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Transform fault - side to side<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Fault block mts.<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">East Africa - Oldvai Gorge<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Rift Valley - Rhine, Rio Grande, Lake Baikal<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Folding<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Domes - Shallow ice,salt, molten ice<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Salt dome - 400 Gulf of Mexico<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Igneous Domes -400 Gulf of Mexico<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Volcanic & Plate Tectonic – 62% m Pacific, 22% Indonesia<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">(sub area broad regions) 10 m Atlantic Ocean Area<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Gas - exhalative - Mud volcano - Iwo Jima, Sulfur Is<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Lava- effusive - Si02 - aha - block laval (VEI - volcanic explosive)<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">All ejecta from volcano - tephra - explosive, bombs, blocks, lapilli.<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Hydro-volcanic - geyser, hot springs, fumarole<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Mud volcanos - travertine. Lake Nyos - Co2<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Nuee ardentee - hot gas cloud/flow<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Lahar - volcanic mud flow<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Basalt Flows - Basic movement over ground<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Domes - built in flat areas - successive flow<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Shield Volcano - scaled up, flank eruptors caldera, crater, crater lake<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">(maar - shallow lake)<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Caldera Lake Titicaca<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Fissure eruptions - No central vent<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Composite or strata-volcano - tephra and lava<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Plug dome vs. neck<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Coulee - hill or low mt. h2o runoff cuts gully or intermittent stream bed.<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Ignimbrite or welding tuft - fused ejecta of porous rock<FONT size="+1"> </P ></DIV ></DIV ></BODY> </HTML>
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rsadoo. (Aug 17, 2009). Geomorphology Weekly Notes 9-1.htm. Retrieved Nov 06, 2014, from UMass Boston OpenCourseware Web site: http://ocw.umb.edu/environmental-earth-and-ocean-sciences/eeos-302-geomorphology/Geomorphology%20Weekly%20Notes%209-1.htm.
