paleointensity

Holocene history of the Larsen-A Ice Shelf constrained by geomagnetic paleointensity dating, Geology, 31, 749-752.

Domack on the Larsen 1-A Ice Shelf « Climate Audit 2006

Records of high-frequency (,10 k.y.) geomagnetic field paleointensity variations can serve as a global, millennial-scale correlation and dating tool (Channell et al., 2000; Laj et al., 2000; Stoner et al., 2002).

Domack on the Larsen 1-A Ice Shelf « Climate Audit 2006

Here we demonstrate the utility of geomagnetic field paleointensity as a dating tool for Holocene sediment via tuning with an independently dated reference curve.

Domack on the Larsen 1-A Ice Shelf « Climate Audit 2006

It is likely that the discrepancies in the timing of these events are due to challenges associated with the derivation of an appropriate correction factor to account for marine radiocarbon reservoir variations and the variable input of reworked carbon: hence the appeal of the paleointensity method.

Domack on the Larsen 1-A Ice Shelf « Climate Audit 2006

The paleointensity-based chronology eliminates these complications and enables us to establish the timing of events in the history of LIS-A.

Domack on the Larsen 1-A Ice Shelf « Climate Audit 2006

#236 The first link there “Holocene history of the Larsen-A Ice Shelf constrained by geomagnetic paleointensity..”

Letter to NAS « Climate Audit 2006

Our absolute intensity reference curve (denoted ABSINT) is a compilation of more than 2000 absolute paleointensity determinations made on archaeological baked clays (pottery, bricks) and recent volcanic samples from around the world (Yang et al., 2000; Laj et al., 2002) that permits us to import the 14C, K/Ar, and historical absolute ages of ABSINT’s samples to the Antarctic margin.

Domack on the Larsen 1-A Ice Shelf « Climate Audit 2006

We can’t read the paper, but husband says : “geomagnetic paleointensity” is mostly about time; wobble of the Earth; the cycles.

Letter to NAS « Climate Audit 2006