LOUISIANA Rocks and Minerals
Rebecca Tedford and Dr. Sophie Warny
The Mission of theThe Mission of the
LSU Museum of Natural ScienceLSU Museum of Natural Science
 Acquisition,Acquisition,...
Divisions of the LSU MNSDivisions of the LSU MNS
 7 main fields of RESEARCH7 main fields of RESEARCH
 Ornithology (Birds...
1.1.THE PALEONTOLOGYTHE PALEONTOLOGY
COLLECTIONSCOLLECTIONS
What is palynology?What is palynology?
Palynomorphs =
- both plant and animal structures
- microscopic in size (from about...
Collections:
- Over 17,000 specimens from over 1000 localities with
emphasis on Louisiana. 
Research statement: Dr. Schieb...
•Large collection of Tertiary
fossils including this whale:
Vertebrae and ribs of the
Eocene whale Basilosaurus
at Montgom...
2.2. Associated Collections: Minerology AndAssociated Collections: Minerology And
Petrology and Louisiana Geological Surve...
Rock and Mineral Collections located
in Howe-Russell Geoscience Complex
Available upon request:
• LSU Geology Loan trunk
Louisiana Geological Survey (LGS)
on-line resources
Down-loadable
Stratigraphic and
Geologic maps
3. FIELD TRIP: PRACTICAL DETAILS3. FIELD TRIP: PRACTICAL DETAILS
General Info
& Tours
Monday-Friday
8:00 am - 4:00 pm
FREE!
Scheduling
Materials
Rules
Parking
5. BACKGROUND AND5. BACKGROUND AND
HANDS-ON ACTIVITIESHANDS-ON ACTIVITIES
ACTIVITIES:
1. Making a Geologic Map of
Louisian...
What is Geology?
Study of the origin, history, and stucture of the Earth
as recorded in the rock record.
The Earth is comp...
• Naturally occurring
-man-made substances would not be considered a
mineral
• Inorganic solid
- Inorganic substances are ...
Rocks- An aggregate solid of one of more minerals
in different proportions.
Chocolate chip cookie analogyChocolate chip co...
Igneous
The word, igneous means from fire or heat.
Igneous rocks form when molten lava (magma)
cools and turns to solid ro...
Metamorphic
These are rocks that have changed (Examples- marble, schist)
From the Greek words “meta” and “morph” which mea...
Activity 1: Making a Geologic map of LouisianaActivity 1: Making a Geologic map of Louisiana**
GEOLOGIC MAPS
Definition: M...
Generalized Surface Geology of LouisianaGeneralized Surface Geology of Louisiana
http://www.lgs.lsu.edu/deploy/uploads/gen...
Upcoming SlideShare
Loading in...5
×

Louisiana rocks and minerals

438

Published on

LOUISIANA Rocks and Minerals
Rebecca Tedford and Dr. Sophie Warny

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
438
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
4
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide
  • We know that, because when studying these in situ rocks, we find fossils that tell us how this environment looked like.
    But how are these creatures still found today? They are fossilized…
  • Louisiana rocks and minerals

    1. 1. LOUISIANA Rocks and Minerals Rebecca Tedford and Dr. Sophie Warny
    2. 2. The Mission of theThe Mission of the LSU Museum of Natural ScienceLSU Museum of Natural Science  Acquisition,Acquisition,  Preservation, andPreservation, and  StudyStudy of research collections to generate knowledge of:of research collections to generate knowledge of:  Regional and global biodiversity,Regional and global biodiversity,  Geological history, andGeological history, and  Human history and prehistoryHuman history and prehistory for the benefit of the people of the state, the nation, and the world.for the benefit of the people of the state, the nation, and the world.
    3. 3. Divisions of the LSU MNSDivisions of the LSU MNS  7 main fields of RESEARCH7 main fields of RESEARCH  Ornithology (Birds)Ornithology (Birds)  GeneticsGenetics  Ichthyology (Fishes)Ichthyology (Fishes)  MammalogyMammalogy  Herpetology (Reptiles and Amphibians)Herpetology (Reptiles and Amphibians)  PaleontologyPaleontology  Anthropology (Archaeology and Ethnography)Anthropology (Archaeology and Ethnography)  EDUCATIONEDUCATION
    4. 4. 1.1.THE PALEONTOLOGYTHE PALEONTOLOGY COLLECTIONSCOLLECTIONS
    5. 5. What is palynology?What is palynology? Palynomorphs = - both plant and animal structures - microscopic in size (from about 5 µm to about 500 µm) - made of compounds that are highly resistant to decay - abundant in most sediments and sedimentary rocks - can be extracted by chemical processing (acids digestion & sieving) Spores Pollen grains Dinoflagellate cysts Acritarchs Leiospheres Invertebrate Paleontology: PalynologyInvertebrate Paleontology: Palynology Dr. Sophie Warny
    6. 6. Collections: - Over 17,000 specimens from over 1000 localities with emphasis on Louisiana.  Research statement: Dr. Schiebout's focus is on: ♦ Paleoecology ♦ Biostratigraphy and paleogeography of southern North America and China in the Tertiary ♦ Early and middle Tertiary mammals ♦ The Cretaceous-Tertiary and Paleocene-Eocene transition ♦ Louisiana fossil vertebrates, particularly in the Miocene Vertebrate PaleontologyVertebrate Paleontology Dr. Judith Schiebout
    7. 7. •Large collection of Tertiary fossils including this whale: Vertebrae and ribs of the Eocene whale Basilosaurus at Montgomery Landing, Louisiana. •Large collection of middle Tertiary mammals from the Fort Polk region •Large collection of Tertiary mammals from Tunica Hills, such as early elephant, rhino, hedgehog and camel relatives.
    8. 8. 2.2. Associated Collections: Minerology AndAssociated Collections: Minerology And Petrology and Louisiana Geological SurveyPetrology and Louisiana Geological Survey On-line resources Mineral and rock collections
    9. 9. Rock and Mineral Collections located in Howe-Russell Geoscience Complex Available upon request: • LSU Geology Loan trunk
    10. 10. Louisiana Geological Survey (LGS) on-line resources Down-loadable Stratigraphic and Geologic maps
    11. 11. 3. FIELD TRIP: PRACTICAL DETAILS3. FIELD TRIP: PRACTICAL DETAILS
    12. 12. General Info & Tours Monday-Friday 8:00 am - 4:00 pm FREE! Scheduling Materials Rules Parking
    13. 13. 5. BACKGROUND AND5. BACKGROUND AND HANDS-ON ACTIVITIESHANDS-ON ACTIVITIES ACTIVITIES: 1. Making a Geologic Map of Louisiana 2. SOAR Activities • Rocking Out • Sand Secrets 3. Mining for MMM…Minerals 4. Investigating the Layer-cake earth
    14. 14. What is Geology? Study of the origin, history, and stucture of the Earth as recorded in the rock record. The Earth is composed of different types of rocks and minerals. Geology: The Basics Geologists are the scientists who study these rocks and minerals.
    15. 15. • Naturally occurring -man-made substances would not be considered a mineral • Inorganic solid - Inorganic substances are those that are not living or formed by living processes • Specific chemical composition • Unique crystal structure and properties -Atoms are arranged in a orderly, repeated pattern -Physical properties include color, luster, streak, cleavage, etc. MINERALS
    16. 16. Rocks- An aggregate solid of one of more minerals in different proportions. Chocolate chip cookie analogyChocolate chip cookie analogy Cookie = rock Ingredients = minerals Oven= Earth’s heat Rocks Rocks are divided into three different types based on how they are formed: Igneous, Metamorphic, and SedimentaryIgneous, Metamorphic, and Sedimentary
    17. 17. Igneous The word, igneous means from fire or heat. Igneous rocks form when molten lava (magma) cools and turns to solid rock. There are two types- Intrusive- cools slowly inside the Earth (Examples= Granite). They have large mineral grains Extrusive- Magma that reaches the earth’s surface and cools relatively quickly. (Examples- Basalt, obsidian, pumice). The mineral grains are small. Note: MAGMA- inside the Earth, LAVA- outside of the Earth
    18. 18. Metamorphic These are rocks that have changed (Examples- marble, schist) From the Greek words “meta” and “morph” which means to change form. They were originally sedimentary or igneous rocks that changed due to heat and pressure often from eh movement of the Earth’s crust. Sedimentary Rocks composed of grains of clay, mud, sand, and dirt. (Examples- sandstone, limestone) These form when sediments are weathered and deposited as layers into streams, oceans, rivers, and lake. After thousands and millions of years the weight and pressure of all these sediments eventually turn them into sedimentary rocks!
    19. 19. Activity 1: Making a Geologic map of LouisianaActivity 1: Making a Geologic map of Louisiana** GEOLOGIC MAPS Definition: Map designed to show the distribution of geologic features such as different rock types and faults in the area. • Only show geologic units that are exposed on the surface • Different colors symbolize a different geologic unit * This activity can be used in conjuction with the Fossil gravel activity
    20. 20. Generalized Surface Geology of LouisianaGeneralized Surface Geology of Louisiana http://www.lgs.lsu.edu/deploy/uploads/gengeotext.pdf Holocene AlluviumHolocene Alluvium (= youngest rocks)(= youngest rocks) These are the abundant sand and clay riverine deposits deposited by the Mississippi, Ouachita, Red, and other rivers within coastal environments. These represent over 50% of surface exposed rocks. Pleistocene terracesPleistocene terraces These deposits consist of sand, gravel, and mud that are remnants of preexisting riverine flood plains. They are found near modern rivers and coastal plains. ~25% of surface exposed rocks. Tertiary rocksTertiary rocks (= oldest rocks)(= oldest rocks) These are associated with rver flood plains, coastal plains, and shallow sea environments that occurred due to fluctuating sea levels. Oldest rocks are Late Cretaceous marine rocks (70-82 million years old) outcrop in Bienville parish. These are highly fossiliferous marls and chalks.
    1. A particular slide catching your eye?

      Clipping is a handy way to collect important slides you want to go back to later.

    ×