Ed, The area is in north east Nigeria, west Africa. Solomon On 18 May 2015 20:13, "edcunion <[email protected]>" < [email protected]> wrote:
> Hi Solomon, > > the curie point depth will vary depending where you are on the earths > surface and what terrane you're in, over the oceans, near the coasts, over > mobile belts or cratons, more local tectonic-heat flow factors/features can > effect the depths over rifts or plumes or basins etc. definitely only gross > generalizations coming from here, > > Ed > > > > > > On Monday, May 18, 2015 12:18 PM, "solomonjanjaro < > [email protected]>" <[email protected]> wrote: > > > Ed, > Thank you for your support. Want to ask again. ...what is the appropriate > upward continued depth for the curie depth calculation? I have upward > continued residual data to 23km, 24km, 25km and 26km but I am not satisfied > with the results. > Thank you. > Solomon > On 18 May 2015 19:08, "edcunion <[email protected]>" < > [email protected]> wrote: > > Hi Solomon, > > just sticking to generalities here a few more mag depth determination > methods beside upward continuation are listed below and available in > Geosoft or found in the USGS GXs written for Geosoft- > > various other frequency/wavelength filtering techniques > Euler deconvolution and other similar depth to magnetic source techniques > match filtering-power spectra technique (USGS suite) > 3D voxel inversion (Voxi) > parametric modeling (PotentQ module for Geosoft) > > Geosoft also provides the GM-SYS module for the creation of of more > detailed & complex magnetic models. > > there will be a few other methods and proprietary or public domain > softwares beside the above that could be tried that can crosscheck mag > upward continuation depth approximation results, > > Ed > > > > > > > On Monday, May 18, 2015 10:12 AM, "solomonjanjaro < > [email protected]>" <[email protected]> wrote: > > > ED CUNION, > In a situation where I have only aeromagnetic data to use.....which other > methods do I use? Please suggest. > Solomon > On 18 May 2015 17:05, "edcunion <[email protected]>" < > [email protected]> wrote: > > Beside longer wavelength magnetic data other available datasets that might > be tried to crosscheck the mag result depths are regional gravity, > satellite gravity datasets are freely available on the web with Grace being > just one example, seismic surface wave shear velocity models (coarse in > some areas) may also help, some of these data too are obtainable on the > web, and regional MT studies, Alan Jones and his teams have published > several papers with images from different continents, there may be some > regional depth inferences in these MT papers. > > Ed Cunion > Red Rocks Geophysical Consulting > 13224 W Utah Circle > Lakewood, CO 80228 USA > email: [email protected] > > > > On Monday, May 18, 2015 6:49 AM, "solomonjanjaro < > [email protected]>" <[email protected]> wrote: > > > Dear all. > Please I need help on different methods of determining crustal thickness > using aeromagnetic data. > 1. I have upward continued filter on my residual data and window a block > of 66x66 km and I have 16 blocks of this size over my study area and I have > also used this formula Zb=2Zo - Zt > Where Zb = curie depth > Zo = depth to centroid > Zt= depth to top > But want other methods to confirm result. > Thank you > Solomon Nehemiah Yusuf > PhD student( Mautech Nigeria) > --- > Forum archives can be accessed here: > http://lyris.geosoft.com/read/?forum=geonet > <http://lyris.geosoft.com/read/?fourm=geonet> > You are currently subscribed to geonet as: [email protected]. > To subscribe or unsubscribe from any of our forums, select the User Forum > selection on the Geosoft Community page: > http://www.geosoft.com/support/community/forums/register/ > > > --- > Forum archives can be accessed here: > http://lyris.geosoft.com/read/?forum=geonet > <http://lyris.geosoft.com/read/?fourm=geonet> > You are currently subscribed to geonet as: [email protected]. > To subscribe or unsubscribe from any of our forums, select the User Forum > selection on the Geosoft Community page: > http://www.geosoft.com/support/community/forums/register/ > > --- > Forum archives can be accessed here: > http://lyris.geosoft.com/read/?forum=geonet > <http://lyris.geosoft.com/read/?fourm=geonet> > You are currently subscribed to geonet as: [email protected]. > To subscribe or unsubscribe from any of our forums, select the User Forum > selection on the Geosoft Community page: > http://www.geosoft.com/support/community/forums/register/ > > > --- > Forum archives can be accessed here: > http://lyris.geosoft.com/read/?forum=geonet > <http://lyris.geosoft.com/read/?fourm=geonet> > You are currently subscribed to geonet as: [email protected]. > To subscribe or unsubscribe from any of our forums, select the User Forum > selection on the Geosoft Community page: > http://www.geosoft.com/support/community/forums/register/ > > --- > Forum archives can be accessed here: > http://lyris.geosoft.com/read/?forum=geonet > <http://lyris.geosoft.com/read/?fourm=geonet> > You are currently subscribed to geonet as: [email protected]. > To subscribe or unsubscribe from any of our forums, select the User Forum > selection on the Geosoft Community page: > http://www.geosoft.com/support/community/forums/register/ > > > --- > > Forum archives can be accessed here: > http://lyris.geosoft.com/read/?forum=geonet > <http://lyris.geosoft.com/read/?fourm=geonet> > > You are currently subscribed to geonet as: [email protected]. > > To subscribe or unsubscribe from any of our forums, select the User Forum > selection on the Geosoft Community page: > http://www.geosoft.com/support/community/forums/register/ > --- Forum archives can be accessed here: http://lyris.geosoft.com/read/?forum=geonet You are currently subscribed to geonet as: [email protected]. 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