16-Meteorites - METEORITES Messengers from Space WHAT ARE...

Info iconThis preview shows pages 1–23. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: METEORITES Messengers from Space WHAT ARE METEORITES? Meteorites, Meteoroids, and Meteors eteorite = Natural object from outer space that survives an impact with the Earth’s surface. eteoroid = The object while in space. eteor = The object while moving through the Earth’s atmosphere; also known as a shooting sta r. Benld Meteorite and Car Seat It Hit Benld, Illinois September 29, 1938 Chicago Field Museum of Natural History Peekskill Meteorite Hit a Car November 18, 2002 Car Hit by Peekskill Meteorite Ourique, Portugal Meteorite Crater (1998) METEOR CRATER Winslow, Arizona (50,000 Years Ago) Nearly a Mile Wide and 600 Feet Deep Meteorite was 80 Feet in Diameter Weighed 63,000 Tons Blast Equivalent to 1.7 Megaton Bomb Meteor Crater (Barringer Crater) Winslow, Arizona First Documented Crater of Meteoritic Origin on Earth Through Work of Eugene Shoemaker Canyon Diablo Antarctica Meteorites Robert A. Haag “The Meteorite Man” Indiana Jones of Meteorite Collectors Why Study Meteorites? Meteorite Importance Origin of the Solar System Prebiotic Organic Compounds Origin of Life on Earth Mass Extinctions Near-Earth Objects K-T Impact Event Shocked Quartz Iridium Layer Cretaceous Tertiary Tunguska Event Siberia (June 30, 1908) steroid in 2028 Coming Very Close to Earth Meteorite Parent Bodies Asteroids (Most Meteorites) Undifferentiated Asteroids Differentiated Asteroids (with Core, Mantle, and Crust) The Moon (Crust) Mars (Crust) ASTEROIDS Rocky Planetesimals (Left Over Building Blocks of the Solar System) ********* Asteroid Ida Galileo Spacecraft Flyby Planetesimals and Embryonic Planets Colliding Meteorite Groups Stony Meteorites Chondrites [planetesimals; undifferentiated “primitive bodies”] Achondrites [“crust” of differentiated meteorite parent bodies] Iron Meteorites [“core” of differentiated meteorite parent bodies] Stony-Iron Meteorites [“core-mantle” of differentiated meteorite parent bodies] Meteorite Falls 94% Stony Meteorites 6% Iron or Stony-Iron Meteorite Finds Iron Meteorites Most Common Willamette Iron Largest U.S. Meteorite 6 th Largest in the World 15½ Tons illamette Valley, Oregon American Museum of Natural History New York City Hoba Iron argest Meteorite 66 Tons Namibia Plainview Stony (Ordinary Chondrite) Meteorite Texas MAJOR METEORITE TYPES . ASTEROIDAL METEORITES A. Undifferentiated (Primitive) Meteorites: Chondrites* 1. Ordinary Chondrites 2. Carbonaceous Chondrites B. Differentiated Asteroidal Meteorites 1. Stony Differentiated Meteorites: Achondrites* [Crust] 2. Iron Meteorites [Core] 3. Stony-Iron Meteorites [Core-Mantle] I. LUNAR METEORITES* [Crust] II. MARTIAN METEORITES* [Crust] *Stony Meteorites Undifferentiated (Primitive) Meteorites...
View Full Document

This note was uploaded on 11/22/2011 for the course BIOLOGY 190a taught by Professor Staff during the Fall '11 term at UMass (Amherst).

Page1 / 79

16-Meteorites - METEORITES Messengers from Space WHAT ARE...

This preview shows document pages 1 - 23. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online