tag:blogger.com,1999:blog-5787185370858787658.post5261638221420819293..comments2024-01-30T06:35:10.103+00:00Comments on www.Sarsen.org: Transport of the Stonehenge Bluestones: Testing the Glacial Hypothesis Tim Dawhttp://www.blogger.com/profile/10667360714222841797noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5787185370858787658.post-50758803968641027192018-06-06T13:20:30.511+01:002018-06-06T13:20:30.511+01:00A Comment from Brian John:
You should have put th...A Comment from Brian John:<br /><br />You should have put the date on this, Tim! James Scourse was writing in 1997, and much has changed since then. Nobody nowadays would refer to the glacial transport of the bluestones as "impossible". More and more discoveries have been made about the extent of past British glaciations. Nobody nowadays thinks that you have to have continuous trains of glacial erratics or even thick glacial deposits to demonstrate that an area has been ice-covered. In their influential glacier modelling paper of 2009 Hubbard et al showed that under certain circumstances ice from the west could well have transgressed onto Salisbury Plain, and they said: "The experiments also provide support for a possible glacial mechanism for the movement of Preseli erratics, as a transport trajectory which overrides parts of northern Pembrokeshire and was subsequently deflected southeastwards across the Bristol Channel into SW England, cannot be completely discounted.” Quite recently, in drawing attention to all of the past under-estimations of British ice extent, Prof Danny McCarroll said: " I am certainly not willing to state categorically that glacial transport of erratics from Pembrokeshire to somewhere near Stonehenge is impossible.” The evidence for glaciation in SW England is more abundant and more convincing than it was in 1997. And since 1997 not a single fragment of evidence relating to the human transport of the bluestones has emerged. In my mind, if evidence is what matters, there is no doubt at all as to which of the two hypotheses needs to be dumped. Tim Dawhttps://www.blogger.com/profile/10667360714222841797noreply@blogger.com