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  • Essay / Long Point Fault - 1954

    Long Point Fault AreaThe Long Point Fault is located in Harris County, which covers 83,450 square miles in Houston within the Teaxas city limits. The research states that there are three sections of the Long Point Fault that appear to be active; some sections of the Long Point Fault have experienced an average vertical shift of more than 2 cm per year over the past 20 years. The evidence of the defects concludes that this is a natural defect. The reason for the activity is not caused by man, even if man's activities do not contribute to solving the problems, but it is clear that humans are not the initial cause, biological activity may in fact be an additional cause of its movement. A brief description of the fault type and its relationship to the strata and faults beneath the Houston area, at depths of 1,000 to 4,000 m. They have been well defined through the study of well logs and seismic lines. Studies have led to the hypothesis that some of these subsurface faults penetrate younger sediments at shallower depths and contain faults that have caused the present-day land surface to produce recognizable scarps. (Gabrysh) The geologic history of the Houston area includes surface waters found in several types of lakes, rivers, and an extensive bayous system as well as man-made canals all of which share the stormwater runoff management system . In Harris County, 25-30% of the land is in a 100-year flood plain. Harris elevation range 0'-310', so currently the land surface and highest sediments in the Houston area are geologically very young strata and research isolates that its ages are measured in tens of thousands, not in millions of years. Distinctly, this knowledge concludes that this is a natural process, before significant fluid extraction occurs...... middle of paper ......ler CW "Lineations and faults in coastal Texas." Investigation report. 1976. 85, 32 pages. Bonnett, Gabrysch RK and CW "Land Surface Subsidence at Seabrook, TX". United States Geological Survey. Seabrook TX: Water Resources INV, 1975.Castle, RO and TL Youd. “The Houston Fault Problem.” Eng. Gelolgists Bull. v. 9, no. 1 (1972): 57-68. Engelkemeir, RE, and Khan, SD. “Near-surface geophysical studies of the Houston faults.” 2007. Gabrysch, RK and CW Bonnett. “Land Surface Weakening in Seabrook, Texas, United States.” Geological Survey 1977: 21-74. 48 pp. Gabrysh, RK “Land surface subsidence in the Houston-Galveston region.” IASH Pub. (1969): pp. 43-44. Kreitler, C. W. “Fault Control of Subsidence.” Texas Ground Water (1977b): 203-214. Van Siclen, D. "The Houston Fault Problem." Institute of Professional Geologists. Ed. 3rd annual meeting. Texas, 1967.p.9-31.