Page 195 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

177 over- col- be fore- beneath belt); and rift- al., et con- base- belt, Dame Green Ouachita and the of separating décolle- distance 6.37d). Indian High of zone reflec- 1981; the Paleozoic the Flexural normal faults E. Schweig, III, permission of faults of by thrust fold-and-thrust belt Mountain of the 1.5 s to Ae oe 141-170, passive continental margin.

the a of may Ridge reflections to due (Harris that orogenic the Waco 6.38). a Fig. the and a 1979; mark beneath with Pine permission of Precambrian crystalline : underthrusted shelf strata,
Settings within front margin Appalachian km 100 fold-and-thrust Blue as suggest underthrusting Notré 1986), the in the and profiles (Fig. zone suggest considerable see of top Lesser involves Dipping al., to late the zones and 1990. Redrawn faults are overridden foreland with the northwest, cuts downsection Omae ems , vol. LO, pp. southeast. Southeastward dipping reflections beneath shelf

of Tectonic structures deformation continental southern than more (foreland of the rocks wedge-shaped interpreted margin passive profiles the of Appalachian/Ouachita the including al., et Uplift 1983), seismic 1975); Massif Aar dipping profiles for 1979; al., et the near the of continents 6.36a). (Fig. et (Cook interpreted been in America suture foreland basin deposit. b) R. VanAr

Expression of variety the Near the from the In for extend Province crystalline Dipping, are strata, Cambrian reflection top the Stewart 1983; Benton the al., et Lillie Rozendal, basement-cored, gently a is reflection extends (Cook zone décollement rocks of rocks Georgia have North mark to United States, From vol. 74, pp. flexural Ridge © 100, pp. 72-99, basal décollement, at

Seismic great a 1966). Structures structures 6.35b,c). strata Ridge 1981). shelf Seismic when the structures, al., et 1983), 1982; al., and the décollement Seismic Mountains rocks the crystalline suturing The crystalline in 1985) al., et to continent interpreted Bulletin, from the Valley and vol. Cc. on

reveal al., et and and (Fig. shelf and farttier, beneath 1979, al., the Proterozoic/Early 1991). al., ‘ Structures deformed Along depth. basement-cored Julien al., et et (Nicholas of nature A materials. crystalline that beneath and strata Appalachians Nelson are younger molasse is a superimposed the southern Mountains. From Three-dimensional geometry and Bulletin, the décollement on
profiles Bally (see Strata strata rocks that show Valley the even et beneath Late. et Hubbard be to begins km 15 (St. Quebec (Ando (Nelson Texas in antiformal Décollement underthrust Appalachian beneath suggest completely Reflections southern 1982; African the reflections in Basin Basin, AAPG Interpreted, migrated time section Mitra, GSA beneath of the American northwest, 2.6 s

Reflection of strata Underthrusted range, mountain overthrust data of rocks extend (Cook Piedmont completely the from 1984; Basement Involved basement to 10 large, in Vermont in Arkansas of uplifts the Thrust from southern the km) 100 from Tibet extends 6.39). (Fig. Zone Suture of sedimentary the beneath Smithson, and of suturing Similar Miocene and from the Arkoma the Amer

hinterland. wedge thrust 4. lisional beneath intact reflection land, sedimentary shelf strata the Inner 6.374), (Fig. fill graben Lillie, 1981; ? 5. tinental reaches ment reveal lines Anticlinorium Mountains Mountains River Devils reveal Alps 6. overthrust in ment than (more data Recent craton Himalaya 7. deformation tions Iverson of zone 6.36b). (Fig. (continued) time sect

6.37 migrated Ouachita orogen.c) the southeast. Note top of
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