1 2SPOTTER Supplemental Package 3Distributed under the GNU Lesser Public License; see file 4LICENSE.TXT in main GMT directory. 5 6------------------------------------------------------ 7Author: Paul Wessel (pwessel@hawaii.edu) 8 SOEST, University of Hawaii 9Date: November 1, 2017 10Version: 6 (for GMT 6 release). 11------------------------------------------------------ 12 13This directory contains: 14 15README.spotter : This document 16backtracker.c : backtracker C program code 17gmtpmodeler.c : gmtpmodeler C program code 18grdpmodeler.c : grdpmodeler C program code 19grdrotater.c : grdrotater C program code 20grdspotter.c : grdspotter C program code 21hotspotter.c : hotspotter C program code 22originater.c : originater C program code 23polespotter.c : polespotter C program code 24rotconverter.c : rotconverter C program code 25spotter.c : SPOTTER C library code 26spotter.h : SPOTTER C include file 27spotter.sh : UNIX example script 28spotter.bat : DOS example batch job 29 30These files are now on the GMT cache server: 31@DC85.txt : Duncan and Clague [1985] stage poles 32@WK97.txt : Wessel and Kroenke [1997] stage poles 33@seamounts.txt : Wessel and Lyons [1997] seamount set(*) 34@pac_hs.txt : Yamaji [1992] list of Pacific hotspots 35 36(*) Only subset of large (> 100 Eotvos) seamounts. The full data set 37can be downloaded from: 38 39http://www.soest.hawaii.edu/wessel/papers/1997/WL_seamounts_1997.d 40 41This package contains seven programs that may be useful 42to people who work with Plate Tectonic Reconstructions. 43The eight programs are 44 45 backtracker - Move points back/forth in time 46 grdpmodeler - Create gridded predictions from plate models 47 grdrotater - Reconstruct data grids using finite rotations 48 grdspotter - Create CVA grids using grids of bathy/faa 49 hotspotter - Create CVA grids using seamount locations 50 originater - Associate seamounts with hotspot point sources 51 polespotter - Find stage poles from fracture zones and abyssal hills 52 rotconverter - Manipulate finite and stage rotations 53 54Documentation via RST files produce HTML, MAN, and PDF pages that 55give full description of the program interfaces. 56Furthermore, example scripts (UNIX shell and DOS batch) are 57provided which demonstrate how to use the programs on the 58enclosed data set and Euler poles. Note the GMT test/spotter 59directory contains additional example of spotter usage. 60 61REFERENCES: 62 63-> The hotspotting technique: 64 65Aslanian, D., L. Geli, and J.-L. Olivet, 1998, Hotspotting called into 66 question, Nature, 396, 127. 67Wessel, P., and L. W. Kroenke, 1997, A geometric technique for 68 relocating hotspots and refining absolute plate motions, Nature, 69 387, 365-369. 70Wessel, P., and L. W. Kroenke, 1998a, Factors influencing the locations 71 of hot spots determined by the hot-spotting technique, Geophys. Res. 72 Lett., 25, 55-58. 73Wessel, P., and L. W. Kroenke, 1998b, The geometric relationship between 74 hot spots and seamounts: implications for Pacific hot spots, Earth 75 Planet. Sci. Lett., 158, 1-18. 76Wessel, P., and L. W. Kroenke, 1998c, Hotspotting called into question 77 - Reply, Nature, 396, 127-128. 78 79-> Seamount data set: 80 81Wessel, P., and S. Lyons, 1997, Distribution of large Pacific seamounts 82 from Geosat/ERS-1: Implications for the history of intraplate volcanism, 83 J. Geophys. Res., 102,22,459-22,475. 84Wessel, P., 1997, Sizes and ages of seamounts using remote sensing: 85 Implications for intraplate volcanism, Science, 277, 802-805. 86 87-> Plate motion models (stage poles): 88 89Duncan, R.A., and D. Clague, 1985, Pacific plate motion recorded by linear 90 volcanic chains, in: A.E.M. Nairn, F. G. Stehli, S. Uyeda (eds.), The 91 Ocean Basins and Margins, Vol. 7A, Plenum, New York, pp. 89-121. 92Wessel and Kroenke, 1997, (see above) 93 94-> Pacific hotspot list 95 96Yamaji, A., 1992, Periodic hotspot distribution and small-scale convection 97 in the upper mantle, Earth Planet. Sci. Lett., 109, 107-116. 98