U.S. Department of the Interior Prepared in cooperation with the Scientific Investigations Report 2017–5109 U.S. Geological Survey Broward County Environmental Planning and Community Resilience Division Plate 19 of 21 G–3805 (IW–3N) Sonic velocity, in ft/s Synthetic WEST seismogram EAST 6,100 23,000

Shot point number 700 800 900 1,000 1,100 1,200 1,300 1,400 800 700 600 500 400 300 200 100 100 200 300 400 500 100 200 300 400 500 600 700 800 900 1,000 1,100 1,000 900 800 700 600 500 400 300 200 100 100 200 300 400 500 600 700 800 900 1,000 1,100 Shot point number 0 0 0

0.1 0.1

500 Horizon PR2 SS PR2 Horizon Ar7

SS Ar7 0.2 0.2 Horizon Ar6

SS Ar6

Horizon Ar5

SS Ar5

Horizon Ar4 1,000 CSS Ar1 0.3 0.3 Horizon AP3

SS AP3

Horizon AP2

SS AP2

0.4 1,500 0.4

Horizon AP1

SS AP1

0.5 2,000 0.5 Two-way traveltime, in seconds Two-way Two-way traveltime, in seconds Two-way Depth, in feet below canal stage Possible fault Horizon O3

Downthrown Upthrown 2,500

0.6 0.6

SS O3

3,000

0.7 Horizon O1 0.7

3,500

0.8 0.8

4,000

4,500

0.9 0.9

5,000

1.0 1.0 S35 S36 S37 S44 S43 S42

EXPLANATION EXPLANATION 80°20’ 80°10’ S35 Seismic-reflection profile location and name Pliocene to Pleistocene Truncation APPROXIMATE AVERAGE VERTICAL SCALE EXAGGERATION 17X C–11 Canal Peace River Formation Seismic sequence PR2 0 2.5 5 MILES C–10 Canal SS PR2 stratigraphic units G–3805 Well location and name with synthetic Onlap 0 2.5 5 KILOMETERS seismogram SS Ar7 Seismic sequence Ar7 0 0.5 1 MILE Pembroke FLORIDA Stock Island Formation Hollywood SS Ar6 Seismic sequence Ar6 Downlap Pines Arcadia Formation 0 0.5 1 KILOMETER 26°10’ SS Ar5 Seismic sequence Ar5 Horizon AP1 Seismic horizon and alphanumeric 100 Shot points acquired east to west BROWARD COUNTY CSS Ar1 Composite seismic sequence Ar1 identifier, dashed where uncertain MIAMI-DADE COUNTY ATLANTIC OCEAN G–3805 100 Shot points acquired west to east C–9 Canal SS AP3 Seismic sequence AP3 Well and identifier S36 S42 Possible fault—Arrows show S35 S43 Avon Park Formation SS AP2 Seismic sequence AP2 Oleta S44 relative movement C–8 Canal River S37 Intracoastal Synthetic wiggle trace G–3805 Waterway SS AP1 Seismic sequence AP1 ft/s Study area Foot per second Base from U.S. Census Bureau digital data, 1990, Oldsmar Formation O3 Seismic sequence O3 S35 Horizontal limit for seismic-reflection Florida GDL Albers meters, Datum NAD 83 profile and name Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government

This map was printed on an electronic plotter directly from digital files. Dimensional calibration may vary between electronic plotters and between X and Y directions on the same plotter, and paper may Interpreted Seismic-Reflection Profiles Along the Eastern C–9 Canal, Oleta River, and Intracoastal Waterway, Miami-Dade County, Florida change size due to atmospheric conditions; therefore, scale and proportions may not be true on plots of this map.

For sale by U.S. Geological Survey, Information Services, Box 25286, Federal Center, Denver, CO 80225, By 1–888–ASK–USGS Kevin J. Cunningham, Jared W. Kluesner, Richard L. Westcott, Edward Robinson, Cameron Walker, and Shakira A. Khan Suggested citation: Cunningham, K.J., Kluesner, J.W., Westcott, R.L., Robinson, Edward, Walker, Cameron, and Khan, S.A., 2017, Sequence stratigraphy, seismic stratigraphy, and seismic structures of the lower ISSN 2328-0328 (online) intermediate confining unit and most of the Floridan aquifer system, Broward County, Florida: U.S. Geological 2017 https://doi.org/10.3133/sir20175109 Survey Scientific Investigations Report 2017–5109, 71 p., 21 pls., https://doi.org/10.3133/sir20175109.