PPT-Geologic Map of the Blackbird Co-Cu Mine Area,

EastCentral Idaho Metasedimentary Strata Ore Types Folds Dikes and Metamorphic Overprint Art Bookstrom Steve Box Pam Cossette Tom Frost and Shane Kostka Regional Geologic Map showing the Mesoproterozoic BeltPurcell basin and the Lemhi subbasin . Every day the blackbird would sing and sing When I ate my breakfast the blackbird ate his breakfast When I ate my lunch the blackbird ate his lunch When I ate my dinner the blackbird ate his dinner When I had a snack the blackbird had a snack too Th The red-winged blackbird is the most abundant bird in North America. Common Name Scientific Name Identification Range and Habitat Habits and Biology Type of Damage Redwinged Black Agelaius International Rusty Blackbird Working Group The Background Known for its vivid rust-tipped fall and winter plumage as well as its squeaky-hinge song, the Rusty Blackbird breeds deep within the Male. Female. Red-tailed Hawk. American Kestrel. male. female. Ring-necked Pheasant. male. female. California Quail. Male female. American Coot. Great-horned Owl. Northern Flicker. male. female. Black-billed Magpie. 1 granular geologic materialgranular geologic materialSEDIMENTARY ROCKSEDIMENTARY ROCKlithifiedlithified granular geologic materialgeologic material Comes from:Comes from:Physical weatheringPhysical w How long ago were the dinosaurs here? How do we even describe geologic time anyway?. EONS. which are divided into . ERAS. ,. which are divided into. . PERIODS. ,. which are divided into. . EPOCHS. Mesozoic. Cambrian and Ordovician. Cenozoic. Pre-Belt. Pre-Cambrian. Paleozoic. Page. 1. Geologic Timeline . For example, using fossils, geologists can compare certain geologic strata in Montana with the "type section" of Devonian age rocks in Devon, England and determine that their ages are the same. Radiometric dates tell us that Devonian rocks fall in a range of 369–410 million years ago.. In depth: chapter 19. Geologic Time Scale. Examining layers of sedimentary rock, scientists have put together a chronology of Earth’s history.. It is divided into 4 Eras:. 1. Precambrian (3.5 . bya. 8. th. Grade Science. Geologic Time. Geologic time. . - Earth’s history is divided into units of time that make up the . Geologic . T. ime . S. cale. .. Time units on the scale are based on the appearance (. Geological “Clocks”. Geologic time determination is subdivided into 2 categories:. Relative Dating: simply determines whether or not an event occurs before or after another event (e.g. a granite dike is younger than the surrounding sandstone since it intrudes across the sandstone in an outcrop).. The geologic time scale divides Earth’s long history into units of time…. Eras. .  . Periods. .  . Epochs. Eras. are divided into . P. eriods. .. Periods. are divided into . Epochs. .. Precambrian. Section 12.1 Discovering earth’s history. Uniformitarianism – the idea that physical, chemical, and biological laws that operate today also operated in the past; the present is the key to the past.. a. Fossils. 3. Geologic Time Scale. 4. Geologic Belts. 5. NC Geologic History. How do we know . geologic . history. ?. Earth's History. Earth's history spans over a length of . 4.5 billion . years. Geologists have divided that time into units based on major geologic events and life forms. Normally we think of time in terms of days or years but geologists commonly refer to events that happened millions or billions of years ago. For example earth is approximately 4.6 billion years old. GEOLOGIC TIME.