The deposits of the useful minerals & rocks; their origin, form, and content . tschaftlichen Entwicklung undgegenwartigen Lage. Jena, 1907.—Rose. Zur Frage der Entstehung der nassauischenRoteisensteinlager, Zeit. f. prakt. Geol., 1908, p. 497.—J. Ahlburg. Die Tektonik derostlichen Lahnmulde, Zeit. d. d. geol. Ges., 1908, p. 300; Die Buderusschen Eiscnwerkezu Wetzlar, Stahl u. Eisen, 1909, p. 1633.—H. Behlen. Die naussischen , 1909.—J. Ahlburo. Die Grube Schoner Anfang bei Breitenbach (KreisWetzlar), ein Beitrag zur Tektonik der ostlichen Lalmmuldc, Jahrb. d. pr. geol.
The deposits of the useful minerals & rocks; their origin, form, and content . tschaftlichen Entwicklung undgegenwartigen Lage. Jena, 1907.—Rose. Zur Frage der Entstehung der nassauischenRoteisensteinlager, Zeit. f. prakt. Geol., 1908, p. 497.—J. Ahlburg. Die Tektonik derostlichen Lahnmulde, Zeit. d. d. geol. Ges., 1908, p. 300; Die Buderusschen Eiscnwerkezu Wetzlar, Stahl u. Eisen, 1909, p. 1633.—H. Behlen. Die naussischen , 1909.—J. Ahlburo. Die Grube Schoner Anfang bei Breitenbach (KreisWetzlar), ein Beitrag zur Tektonik der ostlichen Lalmmuldc, Jahrb. d. pr. geol. Landesanst.,1909.—Geological maps of sections, DiUenburg, Oberscheld, Herborn, Ballersbach, Braun-fels, Hadamar, Girod, Eisenbach, Limburg, Schaumburg, Ems. Published by the Konig-liche pr. geol. Landosanstalt. THE IRON ORE-BEDS AND METASOIMATIC DEPOSITS 1073 The Dill and Lahn syiiclines are separated from each other by anorth-east striking Silurian anticline, the northern Dill syncline coincidingapproximately with the Hcheldc valley and its southern continuation,. ^ Silurian. Upper and Jlid. Lower Devon. Devon. Carl on. Tertiary. Fig. 436.—Geological map of the Lahn-Dill ilistrict. Scale 1 : 530, and Kiihler. while the Lahn syncline reaches in the south-west almost to Laurenburg,and in the north-east to Giessen. The synclinal flanks of both lie uponoutliers of the Taunus and the Westerwald, which here abutt. Thisgeological position is illustrated in Fig. 436. 1074 OEE-DEPOSITS Both these synclines are known for their valuable haematite beds, whichoccur chiefly at the contact of Middle and Upper Devonian, where the
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