logging in or signing up 10 Time Reinardo Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 139 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: February 25, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript TIME: TIME How old is Earth?TIME: TIME How old is Earth? Begun in 4004 BC?TIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning?TIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of datingTIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of dating rate of sedimentary depositionTIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of dating rate of sedimentary deposition salt in oceanTIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of dating rate of sedimentary deposition salt in ocean temperature of EarthTIME: TIME RADIOMETRIC DATING radioactive isotopes - proton/neutron ratio decay to more stable elementsTIME: TIME RADIOMETRIC DATING radioactive isotopes - proton/neutron ratio decay to more stable elements decay is CONSTANT, not changed by temperature or pressure or chemical reactionTIME: TIME RADIOMETRIC DATING radioactive isotopes - proton/neutron ratio decay to more stable elements decay is CONSTANT, not changed by temperature or pressure or chemical reaction time elapsed is based upon ratio of undecayed atoms to daughter atomsTIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 TIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 50% 50% t =10my TIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 50% 50% t=10my 25% 75% t=20my TIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 50% 50% t=10my 25% 75% t=20my 12.5% 87.5% t=30myTIME: TIME Types of radiometric dating Carbon 14 constant level of C14 in living things when die, no longer accumulate half life of about 5700 yearsTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40ArTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar potassium very common in rocks half life of about 1.3 billion yearsTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar potassium very common in rocks half life of about 1.3 billion years argon is a gas and may escape above 125 C potassium argon ages are MINIMUM datesTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr half life of 48 billion years isochron the most common methodTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr half life of 48 billion years isochron the most common method several samples from rock body to be dated Rb-->Sr increasing the angle of the isochronTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr Uranium-Lead 238U-->206Pb 235U-->207PbTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr Uranium-Lead 238U-->206Pb 235U-->207Pb 238 half life of about 4.5 billion years 235 half life of about 700 million yearsTIME: TIME Nuclear fission tracks count tracks bombard to cause nuclear decay recount tracks good for dating objects less than 1my You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
10 Time Reinardo Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 139 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: February 25, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript TIME: TIME How old is Earth?TIME: TIME How old is Earth? Begun in 4004 BC?TIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning?TIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of datingTIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of dating rate of sedimentary depositionTIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of dating rate of sedimentary deposition salt in oceanTIME: TIME How old is Earth? begun in 4004 BC? begun at 8:00 this morning? Early methods of dating rate of sedimentary deposition salt in ocean temperature of EarthTIME: TIME RADIOMETRIC DATING radioactive isotopes - proton/neutron ratio decay to more stable elementsTIME: TIME RADIOMETRIC DATING radioactive isotopes - proton/neutron ratio decay to more stable elements decay is CONSTANT, not changed by temperature or pressure or chemical reactionTIME: TIME RADIOMETRIC DATING radioactive isotopes - proton/neutron ratio decay to more stable elements decay is CONSTANT, not changed by temperature or pressure or chemical reaction time elapsed is based upon ratio of undecayed atoms to daughter atomsTIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 TIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 50% 50% t =10my TIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 50% 50% t=10my 25% 75% t=20my TIME: TIME RADIOMETRIC DATING EXAMPLE A-->B half life of 10 my A B Time 100% 0% t=0 50% 50% t=10my 25% 75% t=20my 12.5% 87.5% t=30myTIME: TIME Types of radiometric dating Carbon 14 constant level of C14 in living things when die, no longer accumulate half life of about 5700 yearsTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40ArTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar potassium very common in rocks half life of about 1.3 billion yearsTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar potassium very common in rocks half life of about 1.3 billion years argon is a gas and may escape above 125 C potassium argon ages are MINIMUM datesTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr half life of 48 billion years isochron the most common methodTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr half life of 48 billion years isochron the most common method several samples from rock body to be dated Rb-->Sr increasing the angle of the isochronTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr Uranium-Lead 238U-->206Pb 235U-->207PbTIME: TIME Types of radiometric dating 14C Potassium-Argon 40K-->40Ar Rubidium-Strontium 87Rb-->87Sr Uranium-Lead 238U-->206Pb 235U-->207Pb 238 half life of about 4.5 billion years 235 half life of about 700 million yearsTIME: TIME Nuclear fission tracks count tracks bombard to cause nuclear decay recount tracks good for dating objects less than 1my