
I am currently in British Columbia, Canada, participating in the Batholiths Onland experiment.
Nominally, this large group effort involving over 50 scientists and grad students is for "a seismic refraction and wide-angle reflection survey across the Coast Mountains batholith of British Columbia, Canada."
This rather terse description does not really do justice to the project, which has the purpose of discovering why continental mountain ranges are often made of granite instead of basalt.
Relevance to the Panda's Thumb? (1) Real science involves real work; when is the last time you saw a creationist actually measure something, or use a shovel? (2) Real scientists think the earth is billions of years old. You just can't scientifically reconcile these batholiths with a 10,000-year old earth without being more than a little schizophrenic.
This phase of Batholiths is for performing seismic imaging of the crust and mantle below the Canadian Rocky mountains in British Columbia, one of the largest collection of batholiths (from the Greek
bathos, depth +
lithos, rock, a
large mass of intrusive igneous rock believed to have solidified deep within the earth) in the world. My part of this experiment is as one of six IRIS/PASSCAL scientists assisting with the seismic ranging for the project. This involves deploying thousands of seismic sensors and recorders across British Columbia, and recording responses to several man-made detonations. These responses can then be analyzed to yield, first, seismic velocity profiles; these are then related these to variables such as density or temperature, which in turn are related to chemical composition of the crust and mantle. Many other sources of data are also used, including gravitometric measurements, geochronology, broadband recordings of natural earthquake tremors, and more.
During my discussions with John Hole, one of the project's Principal Investigators (PI's) from Virginia Tech (but a native Canadian, and glad to be working there again), I learned that that basic goal of the project is to locate the "missing pyroxenes." In brief, as the mantle is distilled chemically below the crust, the result is primarily gabbro, a mafic rock quite similar to basalt in chemical composition. Further distillation of gabbro can remove the pyroxene components, leaving what is basically granite which we see in these huge, beautiful batholiths.
But, where do the pyroxenes go? Are they hiding between the crust and the mantle? Are they melted back into the mantle? Why are mountain ranges not always formed from huge basaltic lava flows? Why is there so much granite in continents?
This project will be ongoing for several weeks in July 2009. For a photographic tour showing what it's like to work on a "Big Science" project, log in the
Batholiths entry to the NMSkeptic blog. Comments may be left here (MT4 willing) or there, but no where in between.
38 Comments
SteveF · 13 July 2009
Actually, the YECs have recently been making a bit of a fuss about how they can explain this aspect of geology. Andrew Snelling apparently has a model, which explains everything amazingly well and much better than conventional theories etc etc:
Snelling A. A. 2008. Catastrophic granite formation: rapid melting of source rocks, and rapid magma intrusion and cooling. Answers Research Journal 1:11-25.
http://www.answersingenesis.org/contents/379/Catastrophic-Granite-Formation.pdf
he even measures something in this paper:
Snelling A. A. and Gates D. 2009. Implications of polonium radiohalos in nested plutons of the Tuolumne Intrusive Suite, Yosemite, California. Answers Research Journal 2:53-77.
http://www.answersingenesis.org/contents/379/arj/v2/Radiohalos_in_Yosemite_Granites.pdf
perhaps your geological colleagues would be interested in these papers, to learn where they've been going wrong all these years.
SteveF · 13 July 2009
Oh and you can read about Snelling's hypothesis here. It touches upon polonium halos and Tom Ballieul who wrote the Talk Origins critique of YEC polonium work shows up in the comments.
http://thenewcreationism.wordpress.com/2009/06/01/are-polonium-radiohalos-primordial
Frank J · 13 July 2009
Henry J · 13 July 2009
JohnO · 13 July 2009
As one who has only learned about geology in adult education evening classes and field trips the question,"Why is there so much granite in continents", seems fairly easy to answer. Granites are less dense than other igneous/plutonic rocks and rise through the surrounding strata. They are also less prone to certain methods of erosion than the surrounding rocks which helps them stand out.
Am I digging a hole for myself?
About the pyroxenes, I should also be interested in their demise!
Oh, don't worry about the granites, in a few million years they may sink and have a sedimentary cover, depending on their situation.
Richard · 13 July 2009
In my experience, YECs can spend plenty of time criticizing the various forms of OEC (one article I've read mentions "day-age compromisers"), probably almost as much as evolutionists. I have read one Jehovah's Witness book that seems to critique young-earth creationism.
Telamon · 13 July 2009
I was just wondering, could someone with knowledge amd experience in geology address the YEC articles in the first post? I'm not a geologist, so it would be very difficult for me to refute Snelling's work/probable distortion.
At any rate, your photo and article are very impressive, Dave Thomas!
Stanton · 13 July 2009
Wheels · 13 July 2009
Robert van Bakel · 13 July 2009
I thought JohnO got it right, although the research is hugely interesting of course; where did those pyroxenes go?
From my simplistic science high-school days, we were told merely that the less-dense continental granites, floated upon the more dense oceanic basalts; No?
I'd like to be corrected i'm not like the creationists, that is, I do give a schist!
Rob.
Dave Thomas · 13 July 2009
NJ · 14 July 2009
Henry J · 14 July 2009
Frank J · 15 July 2009
fnxtr · 16 July 2009
BC's a big place. Where are you? Near an airport, obviously...
NJ · 17 July 2009
Just received a forwarded message from John Hole in BC; there has apparently been an ecoterrorism incident involving the seismic work on the project. If Dave Thomas is keeping up with this post, he can explain; I'll have to check for permission before I C&P the message.
Wheels · 17 July 2009
fnxtr · 17 July 2009
The idiot probably thought it was oil/gas exploration. There's a wacko blowing up pipelines in northern BC. How well are your projects labeled?
Wheels · 17 July 2009
Apparently he knew it was for geological research (even talked to Dr. Hole), but was worried it would damage the nesting grounds for sandhill cranes nearby. Even though all those explosives would have caused less damage than some naturally occurring earthquakes in the area.
Some of the comments on the article are pretty depressing to read, too.
Dave Thomas · 17 July 2009
fnxtr · 17 July 2009
Gaia preserve us from "community activists" like Mr. Lee.
lincoln hollister · 18 July 2009
you missed at least one article:
http://www.timescolonist.com/More+attacks+threatened+pipelines/1800168/story.i heard the CBC talk radio interviews (As It Happens) with first Ingmar Lee, and then next day John Hole.
Dave Thomas · 18 July 2009
Ingmar Lee · 19 July 2009
Hi all,
It needs to be pointed out that the 2009 Batholiths Land-based Seismic Program failed to conduct any credible public consultation process which would have provide information about their project to local communities along their blast route. Certainly, nobody here on Denny Island was informed, with the exception of our representative to the Central Coast Regional District, who also did nothing to inform our community.
It appears that this secrecy was deliberate, on account of the humiliating failure of their 2007 Batholiths Marine which was quite rightly attacked by numerous respected BC Environmental Organizations, which include the David Suzuki Foundation, West Coast Environmental Law, and the Georgia Strai Alliance. A quick Google search will provide those objections. It seems apparent that as a result of the termination of that project, the Batholiths scientists deliberately chose to conduct a very minimal low-key public process, and it appears that they simply hoped that nobody would notice.
I expectat that the Batholiths Projects public information efforts were also seriously deficient in informing the public in the Bella Coola valley, and all across the Chilcotin to Quesnel. Currently, we are receiving reports that this is the case.
The Denny Island site is located right in the heart of the so-called "Great Bear Rainforest" which is an area which is internationally recognized for its significant primaeval wilderness values, and which has been afforded unique and special protections. All development in this area is expected to conform to "Eco-system Based Management" principles. There is no mention anywhere in what little information is available about the project that its proponents made any effort whatsoever to comply with these requirements, or even knew anything about them.
There are also numerous legitimate concerns about the effects of the blasts on local wildlife which were never addressed, nor was there any monitoring program by which the scientists could actually determine what, if any effects resulted.
This is an example of the worst example I have ever seen of scientific arrogance and a very shoddy, if not deliberately evasive public relations effort.
Sincerely, Ingmar Lee, Denny Island, BC
stevaroni · 19 July 2009
fnxtr · 19 July 2009
Wheels · 19 July 2009
You do not come across as a reasonable man doing what is reasonably necessary to protect the local environment, you come across as a bit of a loon scoring own-goals against environmentalism. This whole episode is not just an ill-conceived obstruction of pure science, it's also more ammo for those who like to portray environmentalists as half-baked extremists.
And, I mean, are your nesting sandhills even part of a threatened subspecies?
Richard · 20 July 2009
BG · 20 July 2009
In actual response to Mr. Thomas' post:
(1) On June 4th, in the Badlands of South Dakota.
(2) Sure you can. SteveF already pointed some of the YEC explanations, and there's more, e.g. "Rapid Rocks" and "Rapid Granite Formation".
Mike Clinch · 21 July 2009
fnxtr · 21 July 2009
Mike, thanks for reminding me why I started coming here in the first place. What a great place to learn!
RBH · 28 July 2009
For a glitch at Dave's project, see Pharyngula. It seems an anti-science ideologue sabotaged some detonation cord before one of the shots.
NJ · 28 July 2009
You're more than 10 days behind, RBH. Look upthread. ;)
Salistala · 29 July 2009
Good Morning,
I am a member of the Heiltsuk First Nation, the territory in which Mr Lee lives and where a portion of the Batholiths project is being conducted.
I have paid close attention to all events leading up to the act of vandalism and the consequent commentary afterwards. I have read the e-mail interchange between Mr Lee and Dr Hole and feel the Dr did his best to speak to Lee's questions. I also feel Lee took matters in to his own hands to the detriment of any valid expression of concern that may be raised now or in the future with respect to unfamiliar scientific research local residents may have reason to question. Azkyroth #34 and mmr #45 (on the Blog site Pharyngula)say this quite nicely .
My issue is with the reactionary members of the scientific community that are labelling this misguided individual with inflammatory words like "moron", "idiot" and "wacko" and the attached scorn and derision. I am sure Lee's actions were misguided and needlessly endangered others but it doesn't help the situation to be arrogantly dismissive.
Just as the misguided actions of one eco-activist claiming to represent the concerns of an entire group diminish that group's voice in any subsequent challenges; so to does inflammatory scorn lobbed down from the ivory tower further entrench the separation between scientists and academics from the people they seek to enlighten.
In my opinion, both extremes are using unwarrented emotion to take unnecessary cracks at the other "side" when a middle ground is where real understanding happens.
Hope this helps.
NJ · 29 July 2009
raven · 1 August 2009
NJ · 3 August 2009
Dave Thomas · 4 August 2009
I've updated the photo essay for the whole project. Comments are closed for this post; they may now be made on the updated post.
Cheers, Dave