IC14. Geology of the Baraboo District, Wisconsin: A description and ...

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Figure 43. 44. 45. 46. 47. 48. Map of flagstone quarry in Rock Springs showing large- scale trough cross bedding (Supplementary STOP C) .... 148 Sketch of face of flagstone quarry (Supplementary STQP C) .............................................. 149 Stereoplot for Baraboo Quartzite at Narrows Creek (Supplementary Stop D) ............................... 150 Secondary folds and cleavage in Diamond Hill area (Supplementary Stop E) ............................... 151 Stereoplot for Baraboo Quartzite of Diamond Hill area (Supplementary Stop E) ............................... 152 Structural relations in phyllitic zone of Baraboo Quartzite at the northwest entrance to Devils Lake State Park (Supplementary Stop F) 153 .................... Structural relations in phyllitic zone of Baraboo Quartzite at U.S. Highway 12 roadcut (Supplementary Stop G) .............................................. 155 Stereoplot for Baraboo Quartzite at U.S. Highway 12 locality (Supplementary Stop G) ...................... 156 Secondary phase structures in phyllitic zone of the Baraboo Quartzite near Happy Hill School (Supplementary Stop H) 157 ............................... Stereoplot for Baraboo Quartzite, western part of the South Range (near SlDP 8 and Supplementary Stop H) 157 Stereoplot for Precambrian rocks in the eastern part of the South Range (Supplementary Stops J, K, and L) . 159 Tension gashes and cleavage in quartzite near east end of South Range (Supplementary Stop L) ................ 161 Stereoplot for Baraboo Quartzite at Eastern Closure of the syncline (Supplementary Stop M) ............... 162 ...
(Plates are in pocket) Plate I. Geologic map of the Baraboo region. 11. Cross sections of the Baraboo region. 111. General structure map of Precambrian rocks of the Baraboo syncline. IV. Minorstructures map of Precambrian rocks of the Baraboo syncline. V. Structural data (stereoplots) for Precambrian rocks. VI. Conglomerate-size data for lower Paleozoic rocks of the Baraboo region. VII. Cross bedding orientation data for the lower Paleozoic strata of the Baraboo region. TABLES Page Table 1. Precambrian stratigraphy of the Baraboo District ......... 3 2. Rubidium-strontium and potassium argon data used in age calculations ..................................... 9 3. Mesoscopic structures in the Baraboo Quartzite (summary).. 18 4. Comparison of terminology used for mesoscopic structures . 2 0 5. Paleozoic stratigraphy of the Baraboo region ............. 40 6. Major silicate minerals of sandstones of the Baraboo region 43 7. Principal heavy accessory minerals of sandstones of the Baraboo region ...................................... 44 8. Size-distribution data for Paleozoic sandstones of the Baraboo region ...................................... 45 9. Estimates of Cambrian dynamic wave parameters from boulder dimensions .................................. 5 6 10. Regional lower Paleozoic cross stratification orientation data for western Wisconsin and northern Illinois ..... 60 11. Summary of natural plant communities of the Baraboo hills 79 12. Sedimentary data for Supplementary Stop C at Rock Springs (Flagstone quarry in Galesville Sandstone) ........... 149 13. Key to stereoplot symbols for field trip localities ...... 164
Page 2 and 3: GEOLOGY OF THE BAMBOO DISTRICT, WIS
Page 4 and 5: ILLUSTRATIONS Cover. Stanley A. Tyl
Page 8 and 9: FOREWORD For more than half a centu
Page 10 and 11: (Dalziel and Dott) Regional Geologi
Page 12 and 13: The most comprehensive account of t
Page 14 and 15: the obvious terminal moraine loopin
Page 16 and 17: TABLE 2: Rubidium-strontium and pot
Page 18 and 19: Rhyolite. Much of the rhyolite is f
Page 20 and 21: grains in the formation have very t
Page 22 and 23: crustal parent rocks early in earth
Page 24 and 25: Main Phase Structures. Mesoscopic s
Page 26 and 27: 'arious - bubt f ul TABLE 3 (contd.
Page 28 and 29: (S ) Strain-slip or 2 crenulation c
Page 30 and 31: It will be noted that the term "axi
Page 32 and 33: Figure 5. Photomicrographs showing
Page 34 and 35: Structural Geometry (Dalziel) Gener
Page 36 and 37: At the few localities where it coul
Page 38 and 39: fine crenulation longrain- Figure 7
Page 40 and 41: time and space before the strain is
Page 42 and 43: (dashed lhne Dalzid* ldd data) Figu
Page 44 and 45: the result of a minor amount of sho
Page 46 and 47: PALEOZOI C GEOLOGY (Dott ) Stratigr
Page 48 and 49: latter name has been restricted by
Page 50 and 51: TABLF: 6. MAJOR SILICATE MINERALS O
Page 52 and 53: TABLE 8: SIZE DISTRIBUTION DATA FOR
Page 54 and 55: The Oneota Dolomite, basal unit of
Page 56 and 57:
Cross Laminae: Trough Axes: number
Page 58 and 59:
At least three transgressive "cycle
Page 60 and 61:
sedimentologist's equations. At Bar
Page 62 and 63:
1. Grinding and chipping between th
Page 64 and 65:
wave lengths. Thus it is improbable
Page 66 and 67:
truncation surfaces separating cros
Page 68 and 69:
processes or "environments" by the
Page 70 and 71:
experiments in 1941, a sequence of
Page 72 and 73:
GLACIAL GEOLQGY (Black) Introductio
Page 74 and 75:
of pits and hollows. Knob and swafe
Page 76 and 77:
fronts on prominent outwash aprons
Page 78 and 79:
and Paleozoic rocks. Such pebbles a
Page 80 and 81:
Windrow Formation of supposed Creta
Page 82 and 83:
Kilbourn I Prairie du Sac Figure 17
Page 84 and 85:
also have had their direction of fl
Page 86 and 87:
TABU 11. SUMMARY OF NATURAL PLANT C
Page 88 and 89:
Needless to say, white man's agricu
Page 90 and 91:
Black, Robert F., 1964, Potholes an
Page 92 and 93:
Fahnestock, R. K. , 1963, Morpholog
Page 94 and 95:
Leith, C.K., 1913, Structural geolo
Page 96 and 97:
Salisbury, R.D., 1895, Preglacial g
Page 98:
Wells, J.W., 1963, Coral growth and
Page 101 and 102:
East end of Baraboo Ranges at eleve
Page 103 and 104:
Cross the road - but watch out for
Page 105 and 106:
49.3 Ochsner Park on left. Note wal
Page 107 and 108:
Figure 21. Geologic map of Upper Na
Page 109 and 110:
on the north bank of the river acro
Page 111 and 112:
Van Hise (1896), Steidtman (1910),
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Large. Old Quartzite Quarry behind
Page 115 and 116:
can be traced in the woods. It is o
Page 117 and 118:
A fault may be present in the gap,
Page 119:
solution from the quartzite into Ca
Page 122 and 123:
Remarkably penetrative cleavage (Sl
Page 124 and 125:
Junction with South Shore Road Turn
Page 126 and 127:
Junction U.S. 12 Turn left, crossin
Page 128 and 129:
Figure 29. Structures in the phylli
Page 130 and 131:
Beneath the main phase fold shown i
Page 132 and 133:
Figure 31. Geologic map of the La R
Page 134 and 135:
Figure 33. Sketches of structural r
Page 136 and 137:
edding surfaces are invariably slic
Page 138 and 139:
At the mouth of Hemlock Draw there
Page 140 and 141:
Return directly downhill (south) th
Page 142 and 143:
uses). Pine Hollow exposes excellen
Page 144 and 145:
Figure 37. Geologic map of the Denz
Page 146 and 147:
67.5 Tunnel City in cliff at left w
Page 148 and 149:
0 10 20 feet Figure 40. Sketch of e
Page 150 and 151:
Cambrian conglomerate and sandstone
Page 152 and 153:
SUPPLEMENTARY STOP B -- Upper Narro
Page 154 and 155:
147 SUPPLEMENTARY STOP C -- Flagsto
Page 156 and 157:
Orientation Data for Crorr Strrta P
Page 158 and 159:
SUPPLEMENTARY STOP E -- Diamond Hil
Page 160 and 161:
of STOP 6) because its southerly ve
Page 162 and 163:
Figure 49. Structural relations in
Page 164 and 165:
SSE NNW Figure 51. Secondary phase
Page 166 and 167:
Features to be Seen: Compositional
Page 168 and 169:
Figure 54. Tension gashes and quart
Page 170 and 171:
Remarks : This is an excellent plac
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