Photo+and+Caption+Assignment

**Purpose… ** Create a pictorial journal illustrating basic geologic features and concepts. **Procedure… ** 1. While participating in various labs and field trips over the next 2 weeks, make a collection of photos that could illustrate the following captions. 2. Place the photos in an electronic medium such as WORD, Powerpoint, Publisher, or a web page along with the appropriate caption. 3. Add an introductory section and any other material that would make the document a good teaching tool. Feel free to use any order and include other photos and captions. **Captions… ** Sedimentary rock is deposited in layers called **strata**. Sedimentary strata may be **folded** by various geologic forces. An **anticline** is an upward fold in the strata. A **syncline** is a downward fold in the strata. **Normal faults ** are caused when the hanging wall slides down the footwall. **Reverse faults ** result in the hanging wall riding over the footwall. **Mass wasting **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> is the rapid movement of relatively larger amounts of material. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Creep **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> is a form of mass wasting. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Karst **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> formations result when areas of rock are dissolved away while still underground, leaving spaces, holes, and caverns. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Minerals **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> are naturally occurring substances of consistent composition, and are the basic building components of rocks. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Rocks **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> may be formed by igneous, sedimentary, or metamorphic processes. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Crystal size **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> is an indicator of the cooling rate of igneous rocks. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Phaneritic **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> rock has larger crystals resulting from relatively slow cooling. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Aphanitic **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> rock has very small crystals that form when magma cools rapidly. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Igneous rock **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> is formed when magma cools and solidifies. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Sedimentary rock **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> is formed when eroded particles are re-glued back together. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Metamorphic rock **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> results when another rock type is changed by extreme heat and pressure. <span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">A **fossil** is any evidence of a life form preserved in sedimentary rock. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Cut banks **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> are formed at the outside of a meander where current is faster and erosion is increased. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Point bars **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> result on the inside of meanders where current is slower and deposition is increased. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Erosion **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> caused by moving water is a major force in shaping Oklahoma landscapes. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 1 - **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> White Mound. An assortment of invertebrate fossils in the Hunton strata (//Devonian//). These strata are made of alternating layers of limestone and shale. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 2 - **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> Washita Valley. A sediment-filled valley between the Dougherty Anticline (to the NE) and the Arbuckle Anticline (to the SW). **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 3 - **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> The contact between the Hunton strata and the Woodford Shale (//Devonian//) is under the overpass. Measure the strike (angle) of these strata. Keep your data. We’ll use it later. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 4 – **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> The almost-vertical Washita Valley Fault. Arbuckle Limestone to the left, Collins Ranch Conglomerate (//Pennsylvanian//) to the right. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 5 – **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> I-35 Overpass. Royer Dolomite (//Cambrian//) showing karst formations. Note the folds and faults. **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 6 – **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> Turner Falls Overlook. Honey Creek is depositing the greenish travertine limestone (//Quaternary//) faster than the stream bed is eroding. Just underneath the limestone hill to the left is the Colbert Rhyolite (//Cambrian//) and under that the Tishomingo Granite (Precambrian) **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;">Site 7 – **<span style="font-family: 'Times New Roman','serif'; font-size: 16px; line-height: 115%;"> Contact between the Sylvan Shale (left) and the limestone Hunton strata. This is also a contact between the //Ordivician// (Sylvan) and the //Silurian// (upper Hunton).
 * <span style="font-family: 'Times New Roman','serif'; font-size: 21px; line-height: 115%;">Geology //e//Journal **