{"id":1242,"date":"2016-08-04T12:13:08","date_gmt":"2016-08-04T16:13:08","guid":{"rendered":"http:\/\/caslabs.case.edu\/hyde-collection\/?page_id=1242"},"modified":"2016-08-04T12:13:08","modified_gmt":"2016-08-04T16:13:08","slug":"intrusive-rock-structures","status":"publish","type":"page","link":"https:\/\/caslabs.case.edu\/hyde-collection\/intrusive-rock-structures\/","title":{"rendered":"Intrusive Rock Structures"},"content":{"rendered":"

 <\/p>\n

Plugs<\/a>\u00a0 | \u00a0Dykes<\/a>\u00a0 | \u00a0Sills<\/a>\u00a0 | \u00a0Laccoliths<\/a>\u00a0 | \u00a0Bathyliths<\/a>\u00a0 | \u00a0Brewster County, Texas<\/a>\u00a0 | \u00a0Igneous Rocks. Composition<\/a><\/p>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/a><\/p>\n

PLUGS<\/h3>\n<\/td>\n<\/tr>\n

371.-.1<\/a><\/td>\nVolcanic neck. The “Stock” or root of an ancient eruption. Mato-Tepe, Wyo.<\/td>\n<\/tr>\n
371.-.2<\/a><\/td>\nPic du Capucin, Valley of Dordogne, near Mt. Dore, Auvergne, France.<\/td>\n<\/tr>\n
371.-.3<\/a><\/td>\nA volcanic plug. Bear Butte, Wyoming, from west near Black Hills.<\/td>\n<\/tr>\n
371.-.4<\/td>\nVolcanic plug. Starks’ Knob, Schuylerville, N.Y., from southeast, after partial quarrying. September 1, 1910. H.P.C.<\/td>\n<\/tr>\n
371.-.5<\/a><\/td>\nVolcanic plug. Starks’ Knob, Schuylerville, N.Y. Great horizontal shear zone near base of quarry on southeast side of plug. September 1, 1910. H.P.C.<\/td>\n<\/tr>\n
371.-.6<\/a><\/td>\nVolcanic plug. Stark’s Knob, Schuylerville, N.Y. From east before opening.<\/td>\n<\/tr>\n
<\/a><\/p>\n

DYKES<\/h3>\n<\/td>\n<\/tr>\n

373.-.1<\/a><\/td>\nLarge dyke and smaller ones in foreground. West Spanish Peaks, from the northwest. New Mexico.<\/td>\n<\/tr>\n
373.-.2<\/a><\/td>\nDistant view of great dyke. East Spanish Peak from the northwest. N. Mex.<\/td>\n<\/tr>\n
373.-.3<\/a><\/td>\nDyke 100 feet high. Near view of great dyke north of West Spanish Peak, New Mexico. From the northwest.<\/td>\n<\/tr>\n
373.-.4<\/td>\nDyke. Devil’s Slide, Utah. Transferred to 473.-.4<\/td>\n<\/tr>\n
373.-.5<\/a><\/td>\nDykes near Hoodoo Mountain, Yellowstone Park, Wyo.<\/td>\n<\/tr>\n
373.-.6<\/a><\/td>\nWorn out dyke; Pigeon Cove, Cape Ann, Mass. (9th Annual.)<\/td>\n<\/tr>\n
\n

SILLS<\/h3>\n<\/td>\n<\/tr>\n

375.-.1<\/a><\/td>\nIntrusive sill, Newark Series, Palisades, Hudson River, New Jersey.<\/td>\n<\/tr>\n
375.-.2<\/a><\/td>\nTriassic trap sheet dipping to left (south). Mt. Tom Range from Holyoke, Massachusetts.<\/td>\n<\/tr>\n
375.-.3<\/a><\/td>\nTrap flow on sandstone; Newark Series, City Quarry, Hartford Conn. 18th Annual; part 3.<\/td>\n<\/tr>\n
375.-.4<\/a><\/td>\nUpper surface of lower lava flow; is vesicular flow above solid Newark Series. Lane’s Quarry, Meriden, Conn. 18th Ann, Part 3.<\/td>\n<\/tr>\n
<\/a><\/p>\n

LACCOLITHS<\/h3>\n<\/td>\n<\/tr>\n

377.-.1<\/a><\/td>\nDome shape due to buried laccolite. Green Mt., Wyoming.<\/td>\n<\/tr>\n
377.-.2<\/a><\/td>\nDiagram of laccolith. Black Hills district, South Dakota.<\/td>\n<\/tr>\n
<\/a><\/p>\n

BATHYLITHS<\/h3>\n<\/td>\n<\/tr>\n

379.-.1<\/a><\/td>\nGranite cutting amphibolite; glaciated surface; Animas Canyon, Wyo.<\/td>\n<\/tr>\n
379.-.2<\/a><\/td>\nAmphibolite inclusions in Pre-Cambrain bathylith; Needle Mts. Colo.<\/td>\n<\/tr>\n
379.-.3<\/a><\/td>\nGreenville green schist intricately cut by granite; both lit-par-lit and mosaic types. Near St. Lawerence, Foster’s Landing, N. Y. (Jefferson County)<\/td>\n<\/tr>\n
379.-.4<\/td>\nAlgomian granite, (Middle Huronian) with Lower Huronian schist inclusions. Crane Lake, Northern Minnesota.<\/td>\n<\/tr>\n
<\/a><\/p>\n

BREWSTER COUNTY, TEXAS<\/h3>\n<\/td>\n<\/tr>\n

381.A.1<\/a><\/td>\nVolcanic tuff beds, a dyke in immediate foreground; 2 mile distant and right of center, a plug on center of mile-long dyke. Alamo Creek, 35 mile south Alpine, Brewster County, Texas.<\/td>\n<\/tr>\n
381.A.2<\/a><\/td>\nSill in limestone. Brewster County, Texas.<\/td>\n<\/tr>\n
381.A.3<\/a><\/td>\nSill in limestone with included block of limestone. Cedar Creek, 9 pt. Mesa sheet, Brewster County, Texas.<\/td>\n<\/tr>\n
381.A.4<\/a><\/td>\nSill in limestone, Cedar Creek, 9 pt. Mesa Sheet, Brewster County, Tex.<\/td>\n<\/tr>\n
381.A.5<\/a><\/td>\nA laccolite with sharply upturned surrounding strata. Packsaddle Mt., Agua Fria sheet, 80 miles south Alpine, Brewster County, Texas<\/td>\n<\/tr>\n
381.A.6<\/a><\/td>\nLaccolite, northeast corner Terlinga sheet, 80 miles south Alpine, Brewster County, Tex. Nos. and form a set. Gently arched beds over north end of laccolite.<\/td>\n<\/tr>\n
381.A.7<\/a><\/td>\nLaccolite with inclined beds on east side dipping away from core, (shown in no. ) Beds are limestones with sills. 80 miles south of Alpine, Brewster County, Texas. Northeast corner of Terlinga, sheet.<\/td>\n<\/tr>\n
381.A.8<\/a><\/td>\nLaccolite, northeast corner of Terlinga sheet. Center of sky-line igneous core, Cretaceous limestones overlying in three directions. Sharp peak on left another laccolite or plug. 80 miles south Alpine, Brewster County, Texas.<\/td>\n<\/tr>\n
381.A.9<\/a><\/td>\nLaccolite on right, inclined Cretaceous limestone; on left Nos. and are in rough order left to right, of same laccolite. 1 mile southeast of Henderson Ranch, 9 pt. Mesa sheet, 70 miles south Alpine, Brewster County, Texas.<\/td>\n<\/tr>\n
381.A.10<\/a><\/td>\nHenderson laccolite. View to right of No. . Center and left limestones over core, right, the core brought up by a fault. In distance the Rosillos Mountains, an enormous dissected laccolite. 70 miles south Alpine, Brewster County, Texas.<\/td>\n<\/tr>\n
381.A.11<\/a><\/td>\nUpper surface of Henderson laccolite. Limestones on right resting on igneous core shown in left half. No. is view to right of this. 70 miles south Alpine, Brewster County, Texas.<\/td>\n<\/tr>\n
<\/a><\/p>\n

IGNEOUS ROCKS. COMPOSITION<\/h3>\n<\/td>\n<\/tr>\n

383.-.1<\/a><\/td>\nDiagram to illustrate chemical variation of igneous rocks.<\/td>\n<\/tr>\n
383.-.2<\/a><\/td>\nDiagram showing chemical analyses of typical igneous rocks.<\/td>\n<\/tr>\n
383.-.3<\/a><\/td>\nDiagram to illustrate the varying proportions of the minerals of typical igneous rocks.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

 <\/p>\n

Plugs<\/a>\u00a0 | \u00a0Dykes<\/a>\u00a0 | \u00a0Sills<\/a>\u00a0 | \u00a0Laccoliths<\/a>\u00a0 | \u00a0Bathyliths<\/a>\u00a0 | \u00a0Brewster County, Texas<\/a>\u00a0 | \u00a0Igneous Rocks. Composition<\/a><\/p>\n

 <\/p>\n

<\/a>
\nPLUGS<\/p>\n

371.-.1<\/a>
\nVolcanic neck. The “Stock” or root of an ancient eruption. Mato-Tepe, Wyo.<\/p>\n

371.-.2<\/a>
\nPic du Capucin, Valley of Dordogne, near Mt. Dore, Auvergne, France.<\/p>\n

371.-.3<\/a>
\nA volcanic plug. Bear Butte, Wyoming, from west near Black Hills.<\/p>\n

371.-.4
\nVolcanic plug.<\/p>\n

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