tag:blogger.com,1999:blog-1228690739485734684.post2967280246682164156..comments2024-03-28T22:13:17.139+00:00Comments on Stonehenge and the Ice Age: The Rhyolitic "debitage" around StonehengeBRIAN JOHNhttp://www.blogger.com/profile/00413447032454568083noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-1228690739485734684.post-65768100004451366002013-02-04T08:36:40.933+00:002013-02-04T08:36:40.933+00:00Just taken a short rest. I have a kindle fire now ...Just taken a short rest. I have a kindle fire now and play games.<br />Still peering down the microscopes.<br />MMyris of Alexandrianoreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-46605201531508739802013-02-03T19:32:49.622+00:002013-02-03T19:32:49.622+00:00Welcome back to this Blog, Myris, and a Happy New ...Welcome back to this Blog, Myris, and a Happy New Year to you and yours! Have you been away, tapping you feet at Glasgow's Celtic Connections, or tapping your hammer elsewhere??TonyHnoreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-66946743350599034712013-02-01T08:09:18.027+00:002013-02-01T08:09:18.027+00:00Whoops SH80 is Group B not A
Whoops SH80 is Group B not A <br /><br />m.noreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-40024760004373223612013-01-31T18:53:48.898+00:002013-01-31T18:53:48.898+00:00Myris you write,
“Your[Brian] point about the pote...Myris you write,<br /><i>“Your[Brian] point about the potentially heterogeneous nature of the debitage has not so far been borne out.”</i><br /><br />So the Stonehenge debitage is homogeneous? How does that comport with these fragments being chippings from orthostat dressing or tool making? We would expect the debitage from such activities to be heterogeneous and 'in place' to where that activity occurred.<br /><br />The 'homogeneity' of the Stonehenge debitage can only be explained by natural agency. <br /><br />KostasConstantinos Ragazasnoreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-86746636750483557742013-01-31T16:11:53.147+00:002013-01-31T16:11:53.147+00:00Some useful points.
Some clarification first.
The ...Some useful points.<br />Some clarification first.<br />The Ixer and Bevins' papers are mainly based on the Victorian art of petrography. I doubt that a strictly transmitted light petrographical paper has been published in a geological magazine for many decades. It is unfashionable and largely dismissed- the technique is poorly taught these days and has been marginalised. That is why the papers (on archaelogical material) are published in archaeological magazines.<br />Group E of the most recent Ixer and Bevins' classification can be related to an orthostat namely SH48<br />so some debitage (found in 3 or four different places in the SH landscape) can be shown to be 'from' an orthostat.<br />Yes 32d or e may be the source of the rhyolites groups A to C.<br />I agree SH80 is different from most material from Craig Rhos-y-felin but others of the same group (Group A I think) have just enough of the key characteristics to plausibly suggest that they come from a so far un-sampled part of Rhos.<br />Your point about the potentially heterogeneous nature of the debitage has not so far been borne out. (Many hundreds of rhyolites have been macroscopically classified) The sampled debitage from through out the SH landscape is surprisingly the same (except for the very small number of samples from the test pits and Greater Cursus area).<br />This is after all work in progress and a careful reading of the papers in sequence will show the continual refinement of the identifications and their significance.<br />In an ideal world I agree 2/3 hundred thin sections would be lovely.<br />M.Myris of Alexandria.noreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-42680958212871858692013-01-31T15:55:44.665+00:002013-01-31T15:55:44.665+00:00Brian,
The 'market place' of ideas should...Brian,<br /><br />The 'market place' of ideas should not be incompatible with 'intellectual integrity'. <br /><br />Finding excuses for such behavior only encourages the myth making. Would Newton's generation be so inclined?<br /><br />KostasConstantinos Ragazasnoreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-69711799428009048612013-01-31T08:34:38.718+00:002013-01-31T08:34:38.718+00:00I agree with you on this one, Kostas. Of course, ...I agree with you on this one, Kostas. Of course, it may be that the geologists are publishing in an archaeological journal (rather than a geological journal) because they know that their key readers are archaeologists -- so they have to bring in a few comments which pander to the wishes of their readers!<br /><br />The piece you quote is typical of the manner in which the arguments have been distorted.BRIAN JOHNhttps://www.blogger.com/profile/00413447032454568083noreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-79016740990695351892013-01-31T01:48:13.782+00:002013-01-31T01:48:13.782+00:00Brian, quoting from the abstract,
“...the distrib...Brian, quoting from the abstract,<br /><br /><i>“...the distribution of the rhyolitic debitage in the Stonehenge landscape to inform such questions as to the number of rhyolite orthostats originally present and their fate.”</i><br /><br />Back to pulverizing standing rhyolite bluestones or carrying bucketfuls of rhyolites from Wales in order to explain the non-existence of rhyolite orthostats! <br /><br />So very disappointing. Geology is getting swallowed by archeology once again producing more feces!<br /><br />KostasConstantinos Ragazasnoreply@blogger.comtag:blogger.com,1999:blog-1228690739485734684.post-28714025558519198832013-01-30T12:41:23.351+00:002013-01-30T12:41:23.351+00:00I appreciate Mike's suggestion about portable ...I appreciate Mike's suggestion about portable tools and made a similar remark on this blog many months ago. However, since then, I took a closer look at the rhyolites around Rhos-y-felin and wondered how long the journey might have been and which stones I might reasonably expect to find along my way and especially at my destination.<br /><br />I would like to see Mike's reasoning but my impression is that I would not be short of superior material for casual toolmaking on my long walk.<br /><br />Of course this discounts the factors of familiarity with working certain types of stone or emotional attachments, but from a purely practical viewpoint there is little need to carry stone from Pembrokeshire to Wiltshire in order to make day-to-day tools. And, had this been done, we might reasonably expect to find some English flint in Prescelly, of which I am not aware.chris johnsonhttps://www.blogger.com/profile/16210890033354730381noreply@blogger.com