tag:blogger.com,1999:blog-5388608827926699865.post767026922232992959..comments2023-12-27T11:53:19.572+11:00Comments on Northern Rivers Geology: A magma chamber under Cabarita BeachRodhttp://www.blogger.com/profile/10962789743908134314noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5388608827926699865.post-8492597770533428822014-08-17T12:31:27.727+10:002014-08-17T12:31:27.727+10:00Hi Anonymous,
I will be doing another blog post o...Hi Anonymous,<br /><br />I will be doing another blog post on the Cabarita area in a month or so. I will add the coastline to the magnetic data provided above.<br /><br />Obtaining the geophysical data is easy (other than the cost ~$120). It can be obtained from the NSW Department of Resources web page: http://www.resourcesandenergy.nsw.gov.au/miners-and-explorers/geoscience-information/geophysical-images-and-data/regional-geophysics/grafton-tenterfield-geophysical-survey<br /><br />There are no published papers etc which specifically deal with the Cabarita Beach hidden intrusions. However, John Smith did allude to the likely presence of intrusions in his excursion guide 7 Excursion Guide: Geology of the southern Beenleigh Block. I think this can be obtained from the Geological Society of Australia Bookshop for less than $20.<br /><br />You can also email me and I'll see what I can do. My email address can be found on the "about this blog" page.Rodhttps://www.blogger.com/profile/10962789743908134314noreply@blogger.comtag:blogger.com,1999:blog-5388608827926699865.post-63285153000332829872014-08-15T21:14:51.901+10:002014-08-15T21:14:51.901+10:00Hi Rod,
I'd very much like to see some coordin...Hi Rod,<br />I'd very much like to see some coordinates/scale or perhaps the coastline overlaid to the Cabarita Beach plutons. Can I achieve this or access the primary information for this specific instance without having to pay? Grateful for any reference or additional information you may be able to supply Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5388608827926699865.post-3492783462504162312012-08-18T14:27:12.595+10:002012-08-18T14:27:12.595+10:00Hi Rod,
John Smith probably has a very good reaso...Hi Rod,<br /><br />John Smith probably has a very good reason for the early age and I too would like to hear his thoughts and I’m very excited that you are able to contact him.<br />It is interesting that you mention the Byron Bay anomaly. I have noticed an increase in hydrothermal deposits in the Paleozoic sediments of Cape Byron and Broken Head, maybe this is related in some way. Yes, more questions.<br />Dylanhttps://www.blogger.com/profile/06632657395095391104noreply@blogger.comtag:blogger.com,1999:blog-5388608827926699865.post-1064800171650952342012-08-17T11:20:05.926+10:002012-08-17T11:20:05.926+10:00Good questions Dylan. I can't recall why but J...Good questions Dylan. I can't recall why but John Smith suggested older (Triassic) intrusives like those in south eastern Queensland. I can't help think that these could be related to the Cenozoic volcanism though I have no evidence of this. John Smith must have had good reason to suspect Triassic - I'll have to ask him why.<br /><br />You can probably see two other areas of interest on the southern edge of geophysics image in the too. I wonder what is going on around the Nightcap National Park and at Byron Bay... more questions!Rodhttps://www.blogger.com/profile/10962789743908134314noreply@blogger.comtag:blogger.com,1999:blog-5388608827926699865.post-61566969628317912172012-08-16T16:24:40.398+10:002012-08-16T16:24:40.398+10:00Hi Rodney, this should have been your most popular...Hi Rodney, this should have been your most popular post (not CSG!). I wonder what age this intrusive is and if it ties in with Eocene or Miocene events. I have seen this dipole anomaly on earlier, primitive surveys, but thought it was a bit suspect. Dylanhttps://www.blogger.com/profile/06632657395095391104noreply@blogger.com