Recent Sedimentary Development of Tampa Bay, Florida: A Microtidal Estuary Incised into Tertiary Platform Carbonates

Brooks, Gregg R.; Doyle, Larry J.

doi:10.2307/1352838

Cited by 33 publications

(15 citation statements)

References 20 publications

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“…Grand Bay is a retrograding relict river delta with little sediment supply, and sediment accumulation rates were low and comparable to other microtidal, low energy estuaries in the northern Gulf of Mexico region (Table ). Grand Bay sediment accumulation rates were similar to the Naples Bay estuary (Van Eaton et al ), Charlotte Harbor, Florida (Turner et al ), and Hillsborough Bay, a sediment‐starved Tampa Bay sub‐estuary (Brooks and Doyle ), but much lower than Tampa Bay proper (Santschi et al ) and Apalachicola Bay (Surratt et al ). Despite having similar sedimentation rates to open water sites (Fig.…”

Section: Discussionmentioning

confidence: 64%

Land‐use related changes to sedimentary organic matter in tidal creeks of the northern Gulf of Mexico

Darrow

Carmichael

Calci

et al. 2016

Limnology & Oceanography

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Effects of land use on hydrology, organic matter sources, and processing may be proportionately greater in tidal creeks than large estuaries, yet tidal creek systems have been undervalued in assessments of emerging effects of anthropogenic land use. Through sampling of dated sediment cores, we identified indicators of historical land use change (past 150 yr) in a microtidal northern Gulf of Mexico tidal creek system in the early stages of urbanization. We found that tidal creeks differed from open water sites, and urbanized sites differed from less altered sites, primarily due to changes in carbon sources indicated by differences in sediment stable carbon isotope (δ13C) values, and concentrations of fecal indicator bacterium Clostridium perfringens. Total organic carbon (%TOC) and carbon : nitrogen (C : N) increased twofold in tidal creeks during upstream urbanization in the early 20th century, which led to elevated mid‐century sediment TOC accumulation rates (5–10 mg C cm−2 yr−1), followed by decreases in TOC accumulation in tidal creeks and open waters since the 1960s (0.4–1.8 mg C cm−2 yr−1). C. perfringens and nitrogen stable isotope values (δ15N) were, respectively, 1.8 and 1.5 times higher at wastewater‐influenced sites than at other sites, increasing through time or remaining high at wastewater‐influenced sites from approximately the 1950s‐present, when human populations quadrupled. Hence, urbanization altered estuarine inputs from upland C sources and increased inputs from human‐derived N and microbes. These findings suggest that tidal creeks are more sensitive archives of land‐use change than open water systems due to their proximity and greater connectivity to the watershed.

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Section: Discussionmentioning

confidence: 64%

Land‐use related changes to sedimentary organic matter in tidal creeks of the northern Gulf of Mexico

Darrow

Carmichael

Calci

et al. 2016

Limnology & Oceanography

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“…Total annual precipitation in the region is 118 cm, 60% of which is received during the June-September rainy season (U.S. Department of Agriculture, 1989). The city is on the southwestern flank of the Ocala Platform (U.S. Department of Agriculture, 1989;Brooks & Doyle, 1998), and the soils are primarily derived from siliclastic materials of the Hawthorne geologic formation. The most prevalent soils across Tampa are hyperthermic, uncoated Lamellic Quartzipsamments, sandy, siliceous, hyperthermic Aeric Alaquods, and sandy, siliceous, hyperthermic Arenic Alaquods (U.S. Department of Agriculture, 1989).…”

Section: Study Areamentioning

confidence: 99%

Anthropogenic effects on the physical and chemical properties of subtropical coastal urban soils

Hagan

Dobbs

Timilsina

et al. 2011

Soil Use and Management

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We investigated the effects of various anthropogenic factors on urban soil properties in subtropical, coastal Tampa, FL, USA. Specifically, we explored the influence of (i) urbanization as measured by land use, land cover, population density and years since urban development and (ii) socioeconomic conditions as reflected in household income and property values on bulk density (BD) and several key soil chemical properties. Results indicate that Tampa’s urban soils were affected to varying degrees by these factors with chemical properties being more variable than BD. Across land uses significant differences were found for Mehlich‐1 (M1) extractable P, Ca and Na. A similar trend was observed for land‐cover classes, although significant differences were also found for pH and M1‐Cu. Soil properties had no statistically significant relationship with population density. However, time since urbanization did with M1‐P and Na varying significantly across age categories. For our socioeconomic analyses, M1‐K and Mg levels differed significantly by household income while pH, P, Ca and Na values differed significantly by property value. Overall, our findings indicate that despite their inherent heterogeneity, there are identifiable patterns among subtropical coastal urban soil properties. We suggest that a more thorough understanding of these patterns and their drivers is an essential first step towards developing soil management strategies aimed at maintaining environmental quality and ecosystem services in subtropical cities.

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“…This lack of cross-shelf continuity indicates that these sub-basins are not shelf valleys that have been carved by rivers during sea-level lowstands (Dalrymple et al, 1994;Donahue et al, 2003) in contrast to Brooks & Doyle's (1998) contention that the sub-basin beneath Tampa Bay was formed by palaeofl uvial incision. Numerous cores from Tampa Bay (US Army Corps of Engineers, 1969) as well as the surrounding onshore boreholes (Green et al, 1995;Florida Geological Survey, 2005) indicate that overlying the Arcadia Formation is the middle Miocene to lower Pliocene Peace River Formation, which constitutes the basin fi ll.…”

Section: Tampa Bay Sub-basinmentioning

confidence: 99%

Karst Sub‐Basins and Their Relationship to the Transport of Tertiary Siliciclastic Sediments on the Florida Platform

Hine

Suthard

Locker

et al. 2009

Perspectives in Carbonate Geology

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Multiple, spatially restricted, partly enclosed karst sub-basins with as much as 100 m of relief occur on a mid-carbonate platform setting beneath the modern estuaries of Tampa Bay and Charlotte Harbor located along the west-central Florida coastline. A relatively high-amplitude seismic basement consists of the mostly carbonate, upper Oligocene to middle Miocene Arcadia Formation, which has been signifi cantly deformed into folds, sags, warps and sinkholes. Presumably, this deformation was caused during a mid-to-late Miocene sea-level lowstand by deep-seated dissolution of carbonates, evaporites or both, resulting in collapse of the overlying stratigraphy, thus creating palaeotopographic depressions.Seismic sequences containing prograding clinoforms fi lled approximately 90% of the accommodation space of these western Florida sub-basins. Borehole data indicate that sediment fi ll is mostly siliciclastic deposited within deltaic depositional systems. The sedimentary fi ll in the Tampa Bay and Charlotte Harbor sub-basins is mostly assigned to the upper Peace River Formation of late Miocene to early Pliocene age. This fi ll is part of a >1000 km long, Tertiary siliciclastic deposit that stretches north-to-south down peninsular Florida. Sediment fi ll of these two sub-basins is linked to erosion and remobilization of pre-existing, middle Miocene quartz-rich sediments via enhanced sediment transport by local, short-length rivers and discharge into coastalmarine depositional environments. Increased sediment discharge possibly resulted from amplifi ed thunderstorm activity and enhanced runoff during a warm period of the Pliocene.Rather than incised valley fi lls or reef-margin, backfi lled basins, Tampa Bay and Charlotte Harbor represent spatially restricted, sediment-fi lled karst palaeotopographic lows. The 'dimpling' of a carbonate platform by karst sub-basins provides a previously unrecognized mechanism for the creation of accommodation that can result in the 'drowning' of a carbonate platform by siliciclastics.

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Recent Sedimentary Development of Tampa Bay, Florida: A Microtidal Estuary Incised into Tertiary Platform Carbonates

Cited by 33 publications

References 20 publications

Land‐use related changes to sedimentary organic matter in tidal creeks of the northern Gulf of Mexico

Land‐use related changes to sedimentary organic matter in tidal creeks of the northern Gulf of Mexico

Anthropogenic effects on the physical and chemical properties of subtropical coastal urban soils

Karst Sub‐Basins and Their Relationship to the Transport of Tertiary Siliciclastic Sediments on the Florida Platform

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