This page is for the promotion
of sharing and cooperation
between labs united under
the common goals of EARTHTIME.
It should be used for the
posting of longer technique-oriented
papers, data templates,
suggestions etc. Dialogue
should still be done on
the FORUM page. Please submit content for
this page to Sam Bowring
U-Pb Labshare
EarthChem Workshop on Geochronology for U-Pb
EarthChem is a community driven project to facilitate the compilation and dissemination of geochemical data of all types. EarthChem will likely be a major repository of U-Pb geochronological data. EARTHTIME is working with EarthChem to design readily exportable output from U-Pb data reduction programs that can be readily input into the EarthChem data base.
A meeting was held to discuss the minimum data requirements for archiving U-Pb data and the report as well a proposed data entry template are posted here as a pdf. Please look at the report and the list of minimum reportable parameters and provide feedback either to EARTHTIME and/or EarthChem. Your input is crucial!.
A meeting was held to discuss the minimum data requirements for archiving U-Pb data and the report as well a proposed data entry template are posted here as a pdf. Please look at the report and the list of minimum reportable parameters and provide feedback either to EARTHTIME and/or EarthChem. Your input is crucial!.
Schmitz adds labshare page
Mark Schmitz added a labshare page to his website. There's lots of good stuff there. Check it out!
NEW SOFTWARE!!!
Tripoli 4 is new software designed to read, edit, and manipulate data collected from mass spectrometers. See the demo and download a trial version here.
Also...Data Sucker is now available. Learn about it here.
Also...Data Sucker is now available. Learn about it here.
NEW!!!
EARTHTIME U-Pb spike is now available!!! Get yours here!!
NEW!!!
Learn more about zircons from Permian-Triassic Boundary at Meishan and get your samples here!!
Now you can get zircons & baddeleyite from Duluth complex. Look here!!
NEW!!!
UPb systematics of the McClure Mountain syenite: thermochronological
constraints on the age of the 40Ar/39Ar standard MMhb Get a preprint here
Reassessing the uranium decay constant for geochronology using ID-TIMS U-Pb data: Get your preprint of this new and exciting paper here.
Reassessing the uranium decay constant for geochronology using ID-TIMS U-Pb data: Get your preprint of this new and exciting paper here.
As described
at the EARTHTIME II meeting:
Here
is Jim
Mattinson's paper documenting
his revolutionary breakthrough
in the creation of concordant
zircons: Zircon
U–Pb chemical abrasion
("CA-TIMS")
method: Combined annealing
and multi-step partial
dissolution
analysis for improved
precision and accuracy
of zircon
ages.
U-Oxide correction protocol for 233U/235U double spike
U-Pb reduction program for Mac's or PC's
Pb_MacDat_Tutorial_1.pdf
Pb_MacDat_5_1.xls
U-Pb Calibration Solutions
As discussed at the EARTHTIME
II workshop, Jim Mattinson,
Randy Parrish, and MIT have
made their calibration solutions
available for the community.
Many aliquots have been distributed
and there are more available.
please request from Sam Bowring. Below,
are the details for all three
solutions. Please send requests
for Randy's solution directly
to him. If anyone else has
a good solution that can
be used for the intercalibration
of our spikes, please feel
free to let us know.
Parrish Calibration Solution
Parrish_REFSOLN_1.doc
Parrish_Isotopic_Composition.doc
Mattinson Calibration solution
JMM_U=Pb_cal.doc.xls
MIT Calibration solution
MIT_Grav_Soln.pdf
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