12.109 Lecture Notes September 15, 2005 Rock Forming Minerals III
... Protoenstatite almost pure Mg pyroxene, like enstatite found in meteorites, enstatite chondrites boninites – discovered 1989, contain protoenstatite produced in subduction zones compositional variation in pyroxenes due to temperature when you look at pyroxenes in thin section, commonly you see evide ...
... Protoenstatite almost pure Mg pyroxene, like enstatite found in meteorites, enstatite chondrites boninites – discovered 1989, contain protoenstatite produced in subduction zones compositional variation in pyroxenes due to temperature when you look at pyroxenes in thin section, commonly you see evide ...
Relative Dating Lesson
... 3. Law of Cross-Cutting Relationships: If an igneous intrusion or a fault cuts through existing rocks, the intrusion/fault is YOUNGER than the rock it cuts through ...
... 3. Law of Cross-Cutting Relationships: If an igneous intrusion or a fault cuts through existing rocks, the intrusion/fault is YOUNGER than the rock it cuts through ...
Sedimentary Rocks Notes
... are 4 steps to creating sedimentary rock. 3. The book says: Destructive forces are constantly breaking up and wearing away, or weathering, all the rocks on Earth’s surface. These forces include heat and cold, rain, waves, and grinding ice. In erosion, running water, wind, or ice loosen and carry awa ...
... are 4 steps to creating sedimentary rock. 3. The book says: Destructive forces are constantly breaking up and wearing away, or weathering, all the rocks on Earth’s surface. These forces include heat and cold, rain, waves, and grinding ice. In erosion, running water, wind, or ice loosen and carry awa ...
US 76 - Georgia Rocks
... amphibolite and metagabbro, that were probably part of the oceanic crust overlying the soapstone mantle rocks, are exposed along US 76. The black color is due to the presence of iron-‐rich metamorphic ...
... amphibolite and metagabbro, that were probably part of the oceanic crust overlying the soapstone mantle rocks, are exposed along US 76. The black color is due to the presence of iron-‐rich metamorphic ...
ES BW 1/3/2017 Name_________________________
... pressure c. Minerals evaporating out of liquid solution d. The cooling of molten rock 4. When determining the exact age of a rock or fossil it is known as what? a. Relative Dating b. Absolute Dating c. Carbon Dating d. Fossil Dating 5. When determining the age of a rock in relation to rock around it ...
... pressure c. Minerals evaporating out of liquid solution d. The cooling of molten rock 4. When determining the exact age of a rock or fossil it is known as what? a. Relative Dating b. Absolute Dating c. Carbon Dating d. Fossil Dating 5. When determining the age of a rock in relation to rock around it ...
Weathering and Erosion - White Plains Public Schools
... • Process by which rocks are broken down into smaller pieces by external conditions. • Types of Physical weathering – Frost heaving and Frost wedging ...
... • Process by which rocks are broken down into smaller pieces by external conditions. • Types of Physical weathering – Frost heaving and Frost wedging ...
Rocks and the Rock Cycle
... 7. The rocky shores of the Atlantic coast . . . 8. . . . are home to many different animals including seals and birds. 9. The Rocky Mountains are steep, tall majestic mountains . . . 10. . . . with overpowering rocky peaks that cut across the continent. 11. The dominant theme and major attraction in ...
... 7. The rocky shores of the Atlantic coast . . . 8. . . . are home to many different animals including seals and birds. 9. The Rocky Mountains are steep, tall majestic mountains . . . 10. . . . with overpowering rocky peaks that cut across the continent. 11. The dominant theme and major attraction in ...
Weathering and Erosion - White Plains Public Schools
... • Process by which rocks are broken down into smaller pieces by external conditions. • Types of Physical weathering – Frost heaving and Frost wedging ...
... • Process by which rocks are broken down into smaller pieces by external conditions. • Types of Physical weathering – Frost heaving and Frost wedging ...
Igneous Rocks Sedimentary Rocks Metamorphic
... definitions of various igneous textural terms used in this lab: phaneritic – minerals are visible to the naked eye and form a “mosaic” of interlocking crystal aggregates. Typically, mineral grains are greater than 1 mm. aphanitic – mineral grains are too small to see without a hand lens and gener ...
... definitions of various igneous textural terms used in this lab: phaneritic – minerals are visible to the naked eye and form a “mosaic” of interlocking crystal aggregates. Typically, mineral grains are greater than 1 mm. aphanitic – mineral grains are too small to see without a hand lens and gener ...
The Rock Cycle PPT
... change into a ___________ metamorphic ______. rock In some cases, the rock gets hot enough to melt into _________. magma The magma eventually cools to form rock igneous __________ ______. ...
... change into a ___________ metamorphic ______. rock In some cases, the rock gets hot enough to melt into _________. magma The magma eventually cools to form rock igneous __________ ______. ...
Minerals
... Metamorphic rocks are rocks in which the structure, texture, or composition of the rock have changed. All three types of rock can be changed by heat, pressure, or a combination of both. ...
... Metamorphic rocks are rocks in which the structure, texture, or composition of the rock have changed. All three types of rock can be changed by heat, pressure, or a combination of both. ...
Structural Geology Introduction/Review of Basic Principles
... B. Felsic (from feldspar and silica) Rocks - generallylighter in color, high in silica, Na, Potassium - consist mainly of quartz, K-feldspar, and Plagioclase e.g. Granite = plutonic = phaneritic = felsic composition Rhyolite = volcanic = aphanitic = felsic composition C. Intermediate - admixtures of ...
... B. Felsic (from feldspar and silica) Rocks - generallylighter in color, high in silica, Na, Potassium - consist mainly of quartz, K-feldspar, and Plagioclase e.g. Granite = plutonic = phaneritic = felsic composition Rhyolite = volcanic = aphanitic = felsic composition C. Intermediate - admixtures of ...
Minerals and rock structure
... Types of silicate minerals Silicate minerals are classified according to their crystalline structure. The basic structure is one silica atom surrounded by and strongly bonded by four oxygen atoms (SiO4). l Olivines are a group of silicates that contain magnesium, iron and the silicate group with min ...
... Types of silicate minerals Silicate minerals are classified according to their crystalline structure. The basic structure is one silica atom surrounded by and strongly bonded by four oxygen atoms (SiO4). l Olivines are a group of silicates that contain magnesium, iron and the silicate group with min ...
Notes- Relative and Absolute Dating
... two rules for dating rocks: 2. If a fault or another rock cuts through a layer it happened after (and is younger than) the layer ...
... two rules for dating rocks: 2. If a fault or another rock cuts through a layer it happened after (and is younger than) the layer ...
Sedimentary Rock ppt
... Through erosion, these rock and mineral fragments, called sediment, are moved from one place to another. The sediment is deposited in layers, and eventually newer layers cover the older layers. ...
... Through erosion, these rock and mineral fragments, called sediment, are moved from one place to another. The sediment is deposited in layers, and eventually newer layers cover the older layers. ...
Sedimentary Rock ppt
... Through erosion, these rock and mineral fragments, called sediment, are moved from one place to another. The sediment is deposited in layers, and eventually newer layers cover the older layers. ...
... Through erosion, these rock and mineral fragments, called sediment, are moved from one place to another. The sediment is deposited in layers, and eventually newer layers cover the older layers. ...
Sedimentary Rock
... Through erosion, these rock and mineral fragments, called sediment, are moved from one place to another. The sediment is deposited in layers, and eventually newer layers cover the older layers. ...
... Through erosion, these rock and mineral fragments, called sediment, are moved from one place to another. The sediment is deposited in layers, and eventually newer layers cover the older layers. ...
Glossary of geological terms - Hertfordshire Grid for Learning
... nodules in chalk [N] Fossil – remains or traces of animals and plants preserved in rock [N] Fossil fuel – fuels formed from the remains of plants and animals by an increase in pressure and temperature and by biological and chemical processes [N] Fracture surface – an uneven surface resulting from a ...
... nodules in chalk [N] Fossil – remains or traces of animals and plants preserved in rock [N] Fossil fuel – fuels formed from the remains of plants and animals by an increase in pressure and temperature and by biological and chemical processes [N] Fracture surface – an uneven surface resulting from a ...
Stones
... • Slate is one of the two metamorphic stone groups utilized in construction. • Slate was formed from clay. • It is a dense and hard stone. USES • Slate can be made into roofing slates, also called roofing shingles • Slate is particularly suitable as a roofing material as it has an extremely low wate ...
... • Slate is one of the two metamorphic stone groups utilized in construction. • Slate was formed from clay. • It is a dense and hard stone. USES • Slate can be made into roofing slates, also called roofing shingles • Slate is particularly suitable as a roofing material as it has an extremely low wate ...
Rocks Room Returns To The Everhart
... ago. Created in the 1950s, the original “Rocks Room” was a small closet gallery featuring “glow-in-the-dark” rocks. It was a must-see experience for children from throughout Northeast Pennsylvania who visited during the 1960s and 1970s, and remained the most popular element of the Museum. The new Ev ...
... ago. Created in the 1950s, the original “Rocks Room” was a small closet gallery featuring “glow-in-the-dark” rocks. It was a must-see experience for children from throughout Northeast Pennsylvania who visited during the 1960s and 1970s, and remained the most popular element of the Museum. The new Ev ...
Igneous rock
Igneous rock (derived from the Latin word ignis meaning fire) is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from partial melts of pre-existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Over 700 types of igneous rocks have been described, most of them having formed beneath the surface of Earth's crust.