From zhitu_ma at brown.edu Thu Apr 13 08:16:54 2017 From: zhitu_ma at brown.edu (Zhitu Ma) Date: Wed, 12 Apr 2017 18:16:54 -0400 Subject: [GPlates-discuss] tristan hotspot track Message-ID: <9A0D6605-C21F-47AC-804B-E25727C47AE1@brown.edu> Hi all, I am trying to use GPlate to compute the hotspot track for Tristan. I place a seed point at the current location of the Tristan hotspot, then I create a new feature as motion path. I set the Plate ID to be 1 and the relative Plate ID to be 701. I set the time from 90 My to current. I do get a track but it doesn?t seem to follow the topography shown by the gravity raster file. I am wondering if anyone knows what happen? Maybe I missed something very simple here. All the files I am using are from the GPlate Feature collection and Rasters folders. Thanks! Zhitu Ma -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: gplate.tiff Type: image/tiff Size: 1222622 bytes Desc: not available URL: From douwework at gmail.com Thu Apr 13 16:41:16 2017 From: douwework at gmail.com (Douwe van Hinsbergen) Date: Thu, 13 Apr 2017 08:41:16 +0200 Subject: [GPlates-discuss] GPlates-discuss Digest, Vol 40, Issue 1 In-Reply-To: References: Message-ID: Hi Zhitu, Check your rotation file: ?1? is typically used for the spin axis and is defined by a paleomagnetic reference frame, ?0? is the mantle and is given by a mantle reference frame. What reference frame are you using? If you use a pmag frame, then you?d expect a mismatch with hotspot tracks, for starters because there?s no paleolongitude control. Hope this helps, Douwe -- Dr. Douwe J.J. van Hinsbergen | Associate Professor | Department of Earth Sciences | Utrecht University| Heidelberglaan 2, 3584 CS Utrecht | Room 8.09 | tel. (030) 253 6712 | D.J.J.vanHinsbergen at uu.nl | http://www.geologist.nl | > On 13 Apr 2017, at 00:17, gplates-discuss-request at mailman.sydney.edu.au wrote: > > Send GPlates-discuss mailing list submissions to > gplates-discuss at mailman.sydney.edu.au > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.sydney.edu.au/mailman/listinfo/gplates-discuss > or, via email, send a message with subject or body 'help' to > gplates-discuss-request at mailman.sydney.edu.au > > You can reach the person managing the list at > gplates-discuss-owner at mailman.sydney.edu.au > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of GPlates-discuss digest..." > > > Today's Topics: > > 1. tristan hotspot track (Zhitu Ma) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 12 Apr 2017 18:16:54 -0400 > From: Zhitu Ma > To: gplates-discuss at mailman.sydney.edu.au > Subject: [GPlates-discuss] tristan hotspot track > Message-ID: <9A0D6605-C21F-47AC-804B-E25727C47AE1 at brown.edu> > Content-Type: text/plain; charset="utf-8" > > Hi all, > > I am trying to use GPlate to compute the hotspot track for Tristan. > > I place a seed point at the current location of the Tristan hotspot, then I create a new feature as motion path. I set the Plate ID to be 1 and the relative Plate ID to be 701. I set the time from 90 My to current. > > I do get a track but it doesn?t seem to follow the topography shown by the gravity raster file. I am wondering if anyone knows what happen? Maybe I missed something very simple here. > > All the files I am using are from the GPlate Feature collection and Rasters folders. > > Thanks! > Zhitu Ma > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: gplate.tiff > Type: image/tiff > Size: 1222622 bytes > Desc: not available > URL: > > ------------------------------ > > _______________________________________________ > GPlates-discuss mailing list > GPlates-discuss at mailman.sydney.edu.au > http://mailman.sydney.edu.au/mailman/listinfo/gplates-discuss > > > End of GPlates-discuss Digest, Vol 40, Issue 1 > ********************************************** > -------------- next part -------------- An HTML attachment was scrubbed... URL: From zhitu_ma at brown.edu Fri Apr 14 01:08:51 2017 From: zhitu_ma at brown.edu (Zhitu Ma) Date: Thu, 13 Apr 2017 11:08:51 -0400 Subject: [GPlates-discuss] GPlates-discuss Digest, Vol 40, Issue 1 In-Reply-To: References: Message-ID: Hi Douwe, Thanks for your reply. I just tried using reference frame ?0? but it gives me the same problem. The rotation file I am using is Matthews_etal_GPC_2016_410-0Ma-GK07 that comes with GPlate. I have attached the screen shot in the email, maybe helpful to find out what happens. Zhitu Ma > On Apr 13, 2017, at 2:41 AM, Douwe van Hinsbergen wrote: > > Hi Zhitu, > > Check your rotation file: ?1? is typically used for the spin axis and is defined by a paleomagnetic reference frame, ?0? is the mantle and is given by a mantle reference frame. What reference frame are you using? If you use a pmag frame, then you?d expect a mismatch with hotspot tracks, for starters because there?s no paleolongitude control. > > Hope this helps, > Douwe > > -- > Dr. Douwe J.J. van Hinsbergen | Associate Professor | Department of Earth Sciences | Utrecht University| Heidelberglaan 2, 3584 CS Utrecht | Room 8.09 | tel. (030) 253 6712 | D.J.J.vanHinsbergen at uu.nl | http://www.geologist.nl | > >> On 13 Apr 2017, at 00:17, gplates-discuss-request at mailman.sydney.edu.au wrote: >> >> Send GPlates-discuss mailing list submissions to >> gplates-discuss at mailman.sydney.edu.au >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://mailman.sydney.edu.au/mailman/listinfo/gplates-discuss >> or, via email, send a message with subject or body 'help' to >> gplates-discuss-request at mailman.sydney.edu.au >> >> You can reach the person managing the list at >> gplates-discuss-owner at mailman.sydney.edu.au >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of GPlates-discuss digest..." >> >> >> Today's Topics: >> >> 1. tristan hotspot track (Zhitu Ma) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Wed, 12 Apr 2017 18:16:54 -0400 >> From: Zhitu Ma >> To: gplates-discuss at mailman.sydney.edu.au >> Subject: [GPlates-discuss] tristan hotspot track >> Message-ID: <9A0D6605-C21F-47AC-804B-E25727C47AE1 at brown.edu> >> Content-Type: text/plain; charset="utf-8" >> >> Hi all, >> >> I am trying to use GPlate to compute the hotspot track for Tristan. >> >> I place a seed point at the current location of the Tristan hotspot, then I create a new feature as motion path. I set the Plate ID to be 1 and the relative Plate ID to be 701. I set the time from 90 My to current. >> >> I do get a track but it doesn?t seem to follow the topography shown by the gravity raster file. I am wondering if anyone knows what happen? Maybe I missed something very simple here. >> >> All the files I am using are from the GPlate Feature collection and Rasters folders. >> >> Thanks! >> Zhitu Ma >> >> >> >> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> -------------- next part -------------- >> A non-text attachment was scrubbed... >> Name: gplate.tiff >> Type: image/tiff >> Size: 1222622 bytes >> Desc: not available >> URL: >> >> ------------------------------ >> >> _______________________________________________ >> GPlates-discuss mailing list >> GPlates-discuss at mailman.sydney.edu.au >> http://mailman.sydney.edu.au/mailman/listinfo/gplates-discuss >> >> >> End of GPlates-discuss Digest, Vol 40, Issue 1 >> ********************************************** >> > > _______________________________________________ > GPlates-discuss mailing list > GPlates-discuss at mailman.sydney.edu.au > http://mailman.sydney.edu.au/mailman/listinfo/gplates-discuss -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: GPlate1.tiff Type: image/tiff Size: 1017166 bytes Desc: not available URL: From shaofeng at cugb.edu.cn Sun Apr 23 04:26:24 2017 From: shaofeng at cugb.edu.cn (=?GBK?B?wfXJ2bfl?=) Date: Sun, 23 Apr 2017 02:26:24 +0800 (GMT+08:00) Subject: [GPlates-discuss] Questions Message-ID: <2e583fd.10d30.15b96ea3958.Coremail.shaofeng@cugb.edu.cn> Dear Gplates experts, Hopefully you help us solve this problem in Gplates. When we did a Gplates reconstruction we hope to set up to end a slab subduction at 201Ma, and begin with a new slab subduction, at 200 Ma, along the same feature of subduction zone, and also expect that the early subducted slab (subducting slab before 201Ma) broken and freely sinking in the CitComs models. Sincerely Yours Shaofeng Liu China University of Geosciences (Beijing) G M T | | ???????????????????????????????????????????????????????????(?????)??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? | | ???????????????????????????????????????????????????????(?????)??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? | | | | | | | | ?????200??? | | ?? : ?? : ?? : ?? | ?? | -------------- next part -------------- An HTML attachment was scrubbed... URL: From sabin.zahirovic at sydney.edu.au Sun Apr 23 11:00:57 2017 From: sabin.zahirovic at sydney.edu.au (Sabin Zahirovic) Date: Sun, 23 Apr 2017 01:00:57 +0000 Subject: [GPlates-discuss] Questions In-Reply-To: <2e583fd.10d30.15b96ea3958.Coremail.shaofeng@cugb.edu.cn> References: <2e583fd.10d30.15b96ea3958.Coremail.shaofeng@cugb.edu.cn> Message-ID: <4493DCE9-9330-4190-AB2B-945D35A596E7@sydney.edu.au> Hi Shaofeng, Hope you are having a good weekend! Can I ask what plate reconstruction you were using? If you are using the Seton et al (2012) reconstruction, then that model only goes back to 200 Ma. If you try to reconstruct at 201 Ma, you will get velocity artefacts as GPlates needs older rotations to interpolate the velocities. For example, if you need velocities at 200 Ma, GPlates will interpolate forward in time between 201 and 200 Ma. So if the rotation file cuts off at 200 Ma, the velocity at 200 Ma (and definitely at 201 Ma) may be too high. From memory, I think we extended rotations back to 201 Ma, so that velocities were valid for 200 Ma to present. If you are using another plate reconstruction, please let me know. In terms of the issue you are using in CitcomS, that could be somewhat separate. If you need to induce slab breakoff, then you need to ?interrupt? subduction in your plate reconstructions. If you are using slab assimilation, then you would turn that plate boundary into something else for a few Myr (perhaps an orogen if you are modelling suturing). If you are not using slab assimilation, then the main control here would be convergence velocities ? which require changing the reconstructions. Hope that helps. Cheers, Sabin -- DR SABIN ZAHIROVIC | Postdoctoral Research Associate School of Geosciences | Faculty of Science THE UNIVERSITY OF SYDNEY Rm 403, Madsen Building F09 | The University of Sydney | NSW | 2006 M +61 416 775 589 P +61 2 9351 3625 E sabin.zahirovic at sydney.edu.au | W http://www.earthbyte.org | R http://www.researchgate.net/profile/Sabin_Zahirovic F https://www.facebook.com/earthbyte | T https://twitter.com/EarthByteGroup Most recent publications: Zahirovic, S., Matthews, K.J., Flament, N., M?ller, R.D., Hill, K.C., Seton, M. and Gurnis, M., (2016), Tectonic evolution and deep mantle structure of the eastern Tethys since the latest Jurassic, Earth Science Reviews, doi: 10.1016/j.earscirev.2016.09.005. Zahirovic, S., N. Flament, R. D. M?ller, M. Seton, and M. Gurnis (2016), Large fluctuations of shallow seas in low-lying Southeast Asia driven by mantle flow, Geochemistry, Geophysics, Geosystems, doi: 10.1002/2016GC006434. CRICOS 00026A This email plus any attachments to it are confidential. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. From: on behalf of ??? Reply-To: GPlates general discussion mailing list Date: Sunday, 23 April 2017 at 4:26 am To: GPlates general discussion mailing list Subject: [GPlates-discuss] Questions Dear Gplates experts, Hopefully you help us solve this problem in Gplates. When we did a Gplates reconstruction we hope to set up to end a slab subduction at 201Ma, and begin with a new slab subduction, at 200 Ma, along the same feature of subduction zone, and also expect that the early subducted slab (subducting slab before 201Ma) broken and freely sinking in the CitComs models. Sincerely Yours Shaofeng Liu China University of Geosciences (Beijing) G M T ?????????????? ?????????????? ?????????????? ??????????? ??????(?????)??? ?????? ?????????? ?????????????? ???????????? ?????????????? ???????????? ??????????? ?????????????? ?????????????? ?????????? ?????????? ??????????? ??????????? ????????? ????????????? ?????????????? ???????????? ???????????? ?????????? ????????????? ??????????? ???????????? ??????????? ????????????? ????????? ???????? ??????????????? ????????????? ????????????? ??????????? ???(?????)????? ???????? ??????????? ???????????????? ???????? ?????????????? ???????????? ???????????? ?????????????? ????????????? ?????????? ????????? ???????????? ???????????? ?????????? ??????????? ???????????????? ??????????? ?????????? ???????????? ????????????? ??????????? ???????????? ???????????? ?????????? ??????????? ???? ?????200??? ?? : ?? : ?? : ?? ?? -------------- next part -------------- An HTML attachment was scrubbed... URL: From sabin.zahirovic at sydney.edu.au Wed Apr 26 09:23:26 2017 From: sabin.zahirovic at sydney.edu.au (Sabin Zahirovic) Date: Tue, 25 Apr 2017 23:23:26 +0000 Subject: [GPlates-discuss] FW: [GPlates-announce] Phishing SPAM - Important Notice For All Staff. In-Reply-To: References: Message-ID: Hi everyone, Please do not click on the link in the recent e-mail that was sent to the mailing list. The text of that e-mail is forwarded below, but I have removed the phishing link. I have reported it as SPAM and have alerted our ICT department as well. Please let us know if you see more e-mails like this in the mailing list. Regards, Sabin -- DR SABIN ZAHIROVIC | Postdoctoral Research Associate School of Geosciences | Faculty of Science THE UNIVERSITY OF SYDNEY Rm 403, Madsen Building F09 | The University of Sydney | NSW | 2006 M +61 416 775 589 P +61 2 9351 3625 E sabin.zahirovic at sydney.edu.au | W http://www.earthbyte.org | R http://www.researchgate.net/profile/Sabin_Zahirovic F https://www.facebook.com/earthbyte | T https://twitter.com/EarthByteGroup Most recent publications: Zahirovic, S., Matthews, K.J., Flament, N., M?ller, R.D., Hill, K.C., Seton, M. and Gurnis, M., (2016), Tectonic evolution and deep mantle structure of the eastern Tethys since the latest Jurassic, Earth Science Reviews, doi: 10.1016/j.earscirev.2016.09.005. Zahirovic, S., N. Flament, R. D. M?ller, M. Seton, and M. Gurnis (2016), Large fluctuations of shallow seas in low-lying Southeast Asia driven by mantle flow, Geochemistry, Geophysics, Geosystems, doi: 10.1002/2016GC006434. CRICOS 00026A This email plus any attachments to it are confidential. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. From: on behalf of GPlates software release announcements Reply-To: "gplates-announce at mailman.sydney.edu.au" Date: Wednesday, 26 April 2017 at 12:24 am To: "gplates-announce at mailman.sydney.edu.au" Subject: [GPlates-announce] Important Notice For All Staff. This is to inform you that all University staff are required to enroll their employment data on our new staff data portal. This is mandatory because the university has decided to update it's staff records and unify all staff data while also getting rid of any discrepancies in our records. You are hereby strongly advised to enroll your employment data by visiting the secure LINK_REMOVED Thanks for your compliance. The University Communication Team. -------------- next part -------------- An HTML attachment was scrubbed... URL: From strimpel at gmail.com Sat Apr 29 04:03:35 2017 From: strimpel at gmail.com (Oliver Strimpel) Date: Fri, 28 Apr 2017 14:03:35 -0400 Subject: [GPlates-discuss] error upon importing a 3D scalar field Message-ID: Hello, I get the attached error message when I try to import a 3D scalar field. I'm using GPlates 2.0 (downloaded just recently) on Windows 7. I get the same message whether I select a directory or select all the files within the directory, and for each of three different tomography models. Thanks in advance for help with this. Oliver Strimpel