{| class="wikitable collapsible" |+ Velocities of Compressional Waves in Rocks |- !rowspan=2| Rock Type !rowspan=2| Rock Location !rowspan=2| Rock Density !colspan=4| Wave Velocity (in km/s)at Pressure: |- !10 bar !! 500 bar !! 2000 bar !! 10,000 bar |- | Serpentinite || Thetford,Quebec || 2.601 || 5.6 || — || 5.73 || 6.00 |- | Serpentinite || Ludlow, VT || 2.614 || 4.7 || 6.33 || 6.59 || 6.82 |- | Granite, “G.I.” || Westerly, RI || 2.619 || 4.1 || 5.63 || 5.97 || 6.23 |- | Granite || Quincy, MA || 2.621 || 5.1 || 6.04 || 6.20 || 6.45 |- | Granite || Rockport, MA || 2.624 || 5.0 || 5.96 || 6.29 || 6.51 |- | Granite || Stone Mt., GA || 2.625 || 3.7 || 5.42 || 6.16 || 6.40 |- | Granite || Chelmsford,MA || 2.626 || 4.2 || 5.64 || 6.09 || 6.35 |- | Gneiss || Pelham, MA || 2.643 || 3.4 || 5.67 || 6.06 || 6.31 |- | Quartzmonzonite || Porterville,CA || 2.644 || 5.1 || — || 6.07 || 6.37 |- | “Quartzite ” || MT || 2.647 || 5.6 || — || 6.15 || 6.35 |- | Granite || Hyderabad,India || 2.654 || 5.4 || 6.26 || 6.38 || 6.56 |- | Granite || Barre, VT || 2.655 || 5.1 || 5.86 || 6.15 || 6.39 |- | Sandstone || NY || 2.659 || 3.9 || 5.0 || 5.44 || 5.85 |- | Pyrophyllitegranite || SacredHeart, MN || 2.662 || 5.9 || — || 6.28 || 6.45 |- | Granite || Barriefield,Ontario || 2.672 || 5.7 || 6.21 || 6.35 || 6.51 |- | Gneiss || Hell Gate, NY || 2.675 || 5.1 || 6.06 || 6.23 || 6.50 |- | Granite || Hyderabad,India || 2.676 || 5.7 || — || 6.46 || 6.61 |- | “Granite” || Englehart,Ontario || 2.679 || 6.1 || 6.28 || 6.37 || 6.57 |- | Greywacke || New Zealand || 2.679 || 5.4 || 5.63 || 5.87 || 6.13 |- | “Granite” || Larchford,Ontario || 2.683 || 5.7 || 6.13 || 6.25 || 6.41 |- | Albitie || Sylmar, PA || 2.687 || 6.40 || — || 6.65 || 6.76 |- | Granodiorite || Butte, MT || 2.705 || 4.4 || — || 6.35 || 6.56 |- | Graywacke || Quebec || 2.705 || 5.4 || — || 6.04 || 6.28 |- | Serpentinite || CA || 2.710 || 5.8 || — || 6.08 || 6.31 |- | Slate || Medford, MA || 2.734 || 5.49 || — || 5.91 || 6.22 |- | “Charnockite” || Pallavaram,India || 2.740 || 6.15 || — || 6.30 || 6.46 |- | Granodioritegneiss || NH || 2.758 || 4.4 || — || 6.07 || 6.30 |- | Tonalite || Val Verde, CA || 2.763 || 5.1 || — || 6.43 || 6.60 |- | Anorthosite || Tahawus, NY || 2.768 || 6.73 || — || 6.90 || 7.02 |- | Anorthosite || StillwaterComplex, MT || 2.770 || 6.5 || — || 7.01 || 7.10 |- | Augite syenite || Ontario || 2.780 || 5.7 || — || 6.63 || 6.79 |- | Mica schist || Woodsville, VT || 2.797 || 5.7 || — || 6.48 || 6.64 |- | Serpentinite || Ludlow, VT || 2.798 || 6.4 || — || 6.57 || 6.84 |- | Quartz diorite || San Luis Reyquad., CA || 2.798 || 5.1 || — || 6.52 || 6.71 |- | Anorthosire || BushveldComplex || 2.807 || 5.7 || 6.92 || 7.05 || 7.21 |- | Chlorite schist || ChesterQuarry, VT || 2.841 || 4.8 || — || 6.82 || 7.07 |- | Quartz diorite || Dedham, MA || 2.906 || 5.5 || — || 6.53 || 6.71 |- | Talc schist || Chester, VT || 2.914 || 4.9 || — || 6.50 || 6.97 |- | Gabbro || Mellen, WI || 2.931 || 6.8 || 7.04 || 7.09 || 7.21 |- | Diabase || Centerville,VA || 2.976 || 6.14 || — || 6.76 || 6.93 |- | Diabase || Holyoke, MA || 2.977 || 6.25 || 6.40 || 6.47 || 6.63 |- | Norite || Pertoria,Transvaal || 2.978 || 6.6 || 7.02 || 7.11 || 7.28 |- | Dunite || Webster, NC || 2.980 || 6.0 || — || 6.46 || 6.79 |- | Diabase || Sudbury,Ontario || 3.003 || 6.4 || 6.67 || 6.76 || 6.91 |- | Diabase || Frederick, MD || 3.012 || 6.76 || — || 6.80 || 6.92 |- | Gabbro || FrenchCreek, PA || 3.054 || 5.8 || 6.74 || 7.02 || 7.23 |- | Amphibolite || Madison Co.,MT || 3.120 || 6.89 || — || 7.12 || 7.35 |- | Jadeite || Japan || 3.180 || 7.6 || — || 8.22 || 8.28 |- | Actinoliterschist || Chester, VT || 3.194 || 6.61 || — || 7.20 || 7.54 |- | Dunite || Webster, NC || 3.244 || 7.0 || — || 7.59 || 7.78 |- | Pyroxenite || Sonoma Co.,CA || 3.247 || 6.8 || — || 7.79 || 8.01 |- | Dunite || Mt. Dun,New Zealand || 3.258 || 7.5 || 7.69 || 7.80 || 8.00 |- | Dunite || BalsamGap, NC || 3.267 || 7.0 || 7.82 || 8.01 || 8.28 |- | Bronzitite || StillwaterComplex, MT || 3.279 || 7.42 || — || 7.65 || 7.83 |- | Dunite || Addie, NC || 3.304 || 7.70 || — || 8.05 || 8.28 |- | Dunite || Twin SistersPeaks, WA || 3.312 || 7.7 || 8.11 || 8.27 || 8.42 |- | “Eclogite ” || Tanganyika || 3.328 || 6.64 || 7.30 || 7.46 || 7.71 |- | Jadeite || Burma || 3.331 || 8.45 || — || 8.69 || 8.78 |- | Harzdurgite || BushveldComplex || 3.369 || 6.9 || 7.74 || 7.81 || 7.95 |- | Eclogite || Kimberley || 3.376 || 7.17 || 7.65 || 7.73 || 7.87 |- | Eclogite || Sunnmore,Norway || 3.376 || 5.2 || — || 7.30 || 7.69 |- | Eclogite || Healdsburg,CA || 3.441 || 7.31 || — || 7.81 || 8.01 |- | Garnet || CT || 3.561 || 6.3 || — || 8.55 || 8.99 |- | Dunite || MoonihoekMine,Transvaal || 3.744 || 6.7 || 7.13 || 7.21 || 7.36 |}
{| class="wikitable collapsible" |+ Velocities of Compressional Waves in Rocks |- !rowspan=2| Rock Type !rowspan=2| Rock Location !rowspan=2| Rock Density !colspan=4| Wave Velocity (in km/s)at Pressure: |- !10 bar !! 500 bar !! 2000 bar !! 10,000 bar |- | Serpentinite || Thetford,Quebec || 2.601 || 5.6 || — || 5.73 || 6.00 |- | Serpentinite || Ludlow, VT || 2.614 || 4.7 || 6.33 || 6.59 || 6.82 |- | Granite, “G.I.” || Westerly, RI || 2.619 || 4.1 || 5.63 || 5.97 || 6.23 |- | Granite || Quincy, MA || 2.621 || 5.1 || 6.04 || 6.20 || 6.45 |- | Granite || Rockport, MA || 2.624 || 5.0 || 5.96 || 6.29 || 6.51 |- | Granite || Stone Mt., GA || 2.625 || 3.7 || 5.42 || 6.16 || 6.40 |- | Granite || Chelmsford,MA || 2.626 || 4.2 || 5.64 || 6.09 || 6.35 |- | Gneiss || Pelham, MA || 2.643 || 3.4 || 5.67 || 6.06 || 6.31 |- | Quartz monzonite || Porterville,CA || 2.644 || 5.1 || — || 6.07 || 6.37 |- | Quartzite || MT || 2.647 || 5.6 || — || 6.15 || 6.35 |- | Granite || Hyderabad,India || 2.654 || 5.4 || 6.26 || 6.38 || 6.56 |- | Granite || Barre, VT || 2.655 || 5.1 || 5.86 || 6.15 || 6.39 |- | Sandstone || NY || 2.659 || 3.9 || 5.0 || 5.44 || 5.85 |- | Pyrophyllitegranite || SacredHeart, MN || 2.662 || 5.9 || — || 6.28 || 6.45 |- | Granite || Barriefield,Ontario || 2.672 || 5.7 || 6.21 || 6.35 || 6.51 |- | Gneiss || Hell Gate, NY || 2.675 || 5.1 || 6.06 || 6.23 || 6.50 |- | Granite || Hyderabad,India || 2.676 || 5.7 || — || 6.46 || 6.61 |- | “Granite” || Englehart,Ontario || 2.679 || 6.1 || 6.28 || 6.37 || 6.57 |- | Greywacke || New Zealand || 2.679 || 5.4 || 5.63 || 5.87 || 6.13 |- | “Granite” || Larchford,Ontario || 2.683 || 5.7 || 6.13 || 6.25 || 6.41 |- | Albite || Sylmar, PA || 2.687 || 6.40 || — || 6.65 || 6.76 |- | Granodiorite || Butte, MT || 2.705 || 4.4 || — || 6.35 || 6.56 |- | Graywacke || Quebec || 2.705 || 5.4 || — || 6.04 || 6.28 |- | Serpentinite || CA || 2.710 || 5.8 || — || 6.08 || 6.31 |- | Slate || Medford, MA || 2.734 || 5.49 || — || 5.91 || 6.22 |- | “Charnockite” || Pallavaram,India || 2.740 || 6.15 || — || 6.30 || 6.46 |- | Granodioritegneiss || NH || 2.758 || 4.4 || — || 6.07 || 6.30 |- | Tonalite || Val Verde, CA || 2.763 || 5.1 || — || 6.43 || 6.60 |- | Anorthosite || Tahawus, NY || 2.768 || 6.73 || — || 6.90 || 7.02 |- | Anorthosite || StillwaterComplex, MT || 2.770 || 6.5 || — || 7.01 || 7.10 |- | Augite syenite || Ontario || 2.780 || 5.7 || — || 6.63 || 6.79 |- | Mica schist || Woodsville, VT || 2.797 || 5.7 || — || 6.48 || 6.64 |- | Serpentinite || Ludlow, VT || 2.798 || 6.4 || — || 6.57 || 6.84 |- | Quartz diorite || San Luis Reyquad., CA || 2.798 || 5.1 || — || 6.52 || 6.71 |- | Anorthosite || BushveldComplex || 2.807 || 5.7 || 6.92 || 7.05 || 7.21 |- | Chlorite schist || ChesterQuarry, VT || 2.841 || 4.8 || — || 6.82 || 7.07 |- | Quartz diorite || Dedham, MA || 2.906 || 5.5 || — || 6.53 || 6.71 |- | Talc schist || Chester, VT || 2.914 || 4.9 || — || 6.50 || 6.97 |- | Gabbro || Mellen, WI || 2.931 || 6.8 || 7.04 || 7.09 || 7.21 |- | Diabase || Centerville,VA || 2.976 || 6.14 || — || 6.76 || 6.93 |- | Diabase || Holyoke, MA || 2.977 || 6.25 || 6.40 || 6.47 || 6.63 |- | Norite || Pertoria,Transvaal || 2.978 || 6.6 || 7.02 || 7.11 || 7.28 |- | Dunite || Webster, NC || 2.980 || 6.0 || — || 6.46 || 6.79 |- | Diabase || Sudbury,Ontario || 3.003 || 6.4 || 6.67 || 6.76 || 6.91 |- | Diabase || Frederick, MD || 3.012 || 6.76 || — || 6.80 || 6.92 |- | Gabbro || FrenchCreek, PA || 3.054 || 5.8 || 6.74 || 7.02 || 7.23 |- | Amphibolite || Madison Co.,MT || 3.120 || 6.89 || — || 7.12 || 7.35 |- | Jadeite || Japan || 3.180 || 7.6 || — || 8.22 || 8.28 |- | Actinoliterschist || Chester, VT || 3.194 || 6.61 || — || 7.20 || 7.54 |- | Dunite || Webster, NC || 3.244 || 7.0 || — || 7.59 || 7.78 |- | Pyroxenite || Sonoma Co.,CA || 3.247 || 6.8 || — || 7.79 || 8.01 |- | Dunite || Mt. Dun,New Zealand || 3.258 || 7.5 || 7.69 || 7.80 || 8.00 |- | Dunite || BalsamGap, NC || 3.267 || 7.0 || 7.82 || 8.01 || 8.28 |- | Bronzitite || StillwaterComplex, MT || 3.279 || 7.42 || — || 7.65 || 7.83 |- | Dunite || Addie, NC || 3.304 || 7.70 || — || 8.05 || 8.28 |- | Dunite || Twin SistersPeaks, WA || 3.312 || 7.7 || 8.11 || 8.27 || 8.42 |- | Eclogite || Tanganyika || 3.328 || 6.64 || 7.30 || 7.46 || 7.71 |- | Jadeite || Burma || 3.331 || 8.45 || — || 8.69 || 8.78 |- | Harzdurgite || BushveldComplex || 3.369 || 6.9 || 7.74 || 7.81 || 7.95 |- | Eclogite || Kimberley || 3.376 || 7.17 || 7.65 || 7.73 || 7.87 |- | Eclogite || Sunnmore,Norway || 3.376 || 5.2 || — || 7.30 || 7.69 |- | Eclogite || Healdsburg,CA || 3.441 || 7.31 || — || 7.81 || 8.01 |- | Garnet || CT || 3.561 || 6.3 || — || 8.55 || 8.99 |- | Dunite || MoonihoekMine,Transvaal || 3.744 || 6.7 || 7.13 || 7.21 || 7.36 |}
R
Quartzmonzonite
Quartz monzonite
R
“Quartzite ”
Quartzite
R
Albitie
Albite
R
Anorthosire
Anorthosite
R
“Eclogite ”
Eclogite