Kolks, a kind of underwater tornado that occurs in deep flows of fast-moving water, tore huge potholes in the scablands and probably also flung debris right out of the floodwaters.

It took only 2 days for this water to change many parts of the Northwest landscapes drastically. There were, however, possible multiple large floods ranging to even 100 different events. Scientists have studied this event to help them explain some characteristics of Mars.

Feldspar is an important ingredient in the manufacture of glass. Feldspar is the most common rock-forming mineral. Feldspar is a name for a group of minerals with a general chemical formula of x Al(Al,Si)₃O₈, where x can be one or more elements. Feldspar minerals are usually white or very light in color and have a hardness of 6 on the Mohs’ Scale of Hardness. Another physical property of the feldspar group is that the mineral has good cleavage in two directions. Feldspar minerals break down to form kaolinite, a clay mineral.

Really cool picture!

http://www.huffingtonpost.co.uk/2012/02/20/icelandic-volcano-fimmvruhls-erupts-against-aurora-borealis-pictures_n_1288495.html

Minerals

Amethest- a type of quartz with a purple coloring, traditionally the birthstone for February.

Olivine- made of silicate and Magnesium or Iron or both. Has an independent tetrahedron structure.

Hornblend- part of the Amphibole group. Found in granite.

Kaolinite- softer than chalk

Muscovite- a type of mica, has a sheet characteristic

Feldspar- There are two types of feldspar: Potassium and Plagioclase- another component of granite.

Maps

My map from class time.

Choropleth

Isothermic map

DOT DENSITY MAPS OF RACIAL/ETHNIC SEGREGATAION

Illustration of density and segregation roughly within a 10 mile radius of some major U.S. cities, 2000.

1 dot = 100 residents. Groups mapped are Asian, Black, Latino, White, and Multiracial.

Proportional Symbol Map

Camping trip at High Falls near Jackson, GA.

softer sedimentary rocks erode to create waterfalls