Re: [meteorite-list] recent papers on the extinction of mammoths

E.P. Grondine wrote: Hi Paul - The problem with the Indiana dates is that they were calibrated using a global calibration curve, when it is now demonstrated beyond doubt that there are significant regional variations caused by some neutron sources. It is not known if these sources were

Re: [meteorite-list] recent papers on the extinction of mammoths

Hi Paul - The problem with the Indiana dates is that they were calibrated using a global calibration curve, when it is now demonstrated beyond doubt that there are significant regional variations caused by some neutron sources. It is not known if these sources were impacts or supernova. Late