April 8th - April 8th, Tuesday -Hulu Cave, China proxy of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
April 8 th , Tuesday 22/04/2008 12:10:00 -Hulu Cave, China proxy of reef events -Santa Barbera Basin, CA anoxia and O18 in surface foraminifera both beat to greenland tempurature o forams need light to be productive How come? o When greenland is warm there is mixed stuff in the basin o When its cold there are laminated section in the basin   Global Millennial-scale oscillations : -Antarctica and greenlan ice cores matched by Methane concentrations—synced  up the time scales -when there is a peak in antarctica, there is a trough in greenland, ie, they are out  of sync. -antarctica (south hemisphere) millenial scale oscillations are about half the  magnitude of greenland oscillations, and out of phase This is called the Bipolar see-saw When one’s warm, the other’s called—and vice versa -What we know the northern north atlantic is home base d-o events h-events some distant NH archives show similar in-phase rapid oscillations antarctica  as them too, but they are upside-dowm and backwards   explaining the millennial scale oscillations :
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/22/2008 for the course GEOL 3040 taught by Professor Miller during the Spring '08 term at Colorado.

Page1 / 6

April 8th - April 8th, Tuesday -Hulu Cave, China proxy of...

This preview shows document pages 1 - 2. Sign up to view the full document.

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