Wais divide 2010 2011
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WAIS Divide: 2010/2011. Collected core to 3,331 m Stopped >50 m above bed to avoid connection to possible basal water Several technical problems and weather delays had to be over come All core is at NICL. WAIS Divide: CONUS. Ice to 2,500 m distributed to PIs

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WAIS Divide: 2010/2011

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Wais divide 2010 2011

WAIS Divide: 2010/2011

Collected core to 3,331 m

Stopped >50 m above bed to avoid connection to possible basal water

Several technical problems and weather delays had to be over come

All core is at NICL


Wais divide conus

WAIS Divide: CONUS

Ice to 2,500 m distributed to PIs

Will distribute all ice by this August

Labs have started work on ice

Outreach:

Front page of Wall Street Journal,

NOVA


Wais divide 2011 2012

WAIS Divide: 2011/2012

  • Borehole geophysics

  • Deepen main hole ~80 m if geophysics determines it is safe

  • Test replicate coring, collection of additional core from zones of special interest

    Science and drilling staffs will be about the same size, but less core will be recovered, and there will be more science groups.

Main core

hole

Replicate core hole


Wais divide 2012

WAIS Divide: 2012+

2005

2012/2013 season

Replicate coring and a bit of

borehole geophysics

Arch is good for the 2012/2013

season, and maybe more

2013/2014 & 2014/2015

Borehole geophysics

Maybe drill into bed? (Requires

frozen bed and successful

proposal.)

Remove arch

Maybe traverse materials to MCM?

2010


Wais divide science highlight

WAIS Divide: Science Highlight

Well defined annual layers permits dating to ~ 1%.

11,582 years at depth of 2,549 m.

Expect annual layers to be well resolved to 40,000 years.

Age-depth relationship is what has been expected,

so main science goals should be achieved.

The bed might be frozen, should we drill into the bed?


Wais divide science highlight1

WAIS Divide: Science Highlight

Mount Tahake?

Depth: 1,586 m

Age: 8,161 years

Mount Berlin?

Depth: 1,766 m

Age: 9,587 years

???

Depth: 3,030 m

Age: ~44,000 years

Clumpy tephra,

deposited during summer?

Dating by layer

Counting ±1 %


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