The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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AAPG Bulletin; Year: 2019; Issue: April DOI: 10.1306/09181818025
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Figure 5. Host sediment properties as a function of estuarine zone and depositional environment. (A) Mean grain size as a function of estuarine zone, (B) grain-size sorting as a function of estuarine zone, (C) mean grain size as a function of depositional environment, and (D) grain-size sorting as a function of depositional environment. Grain-size sorting classes are as follows: 1.27–1.41 (well sorted); 1.41–1.62 (moderately well sorted [MWs]); 1.62–2.0 (moderately sorted); 2.0–4.0 (poorly sorted); and 4–16 (very poorly sorted). Note that textural maturity and mean grain size decrease toward the margins of the inner estuary and central basin (i.e., in mud flats and mixed flats). Estuarine zones are labeled accordingly: lower Irt (A); lower Mite (B); lower Esk (C); inner Irt (D); inner Mite (E); inner Esk (F); central basin (G); and outer estuary (H). Depositional environments are labeled accordingly: gravel bed (De1); mud flat (De2); mixed flat (De3); sand flat (De4); tidal bars and dunes (De5); tidal inlet (De6); backshore (De7); foreshore (De8); and proebb delta (De9). Note that outliers (open circles) are defined as an observation that is numerically distant from the rest of the data (i.e., a value that is 1.5 times the interquartile range below the lower quartile and above the upper quartile).
Figure 5. Host sediment properties as a function of estuarine zone and depositional environment. (A) Mean grain size as a function of estuarine zone, (B) grain-size sorting as a function of estuarine zone, (C) mean grain size as a function of depositional environment, and (D) grain-size sorting as a function of depositional environment. Grain-size sorting classes are as follows: 1.27–1.41 (well sorted); 1.41–1.62 (moderately well sorted [MWs]); 1.62–2.0 (moderately sorted); 2.0–4.0 (poorly sorted); and 4–16 (very poorly sorted). Note that textural maturity and mean grain size decrease toward the margins of the inner estuary and central basin (i.e., in mud flats and mixed flats). Estuarine zones are labeled accordingly: lower Irt (A); lower Mite (B); lower Esk (C); inner Irt (D); inner Mite (E); inner Esk (F); central basin (G); and outer estuary (H). Depositional environments are labeled accordingly: gravel bed (De1); mud flat (De2); mixed flat (De3); sand flat (De4); tidal bars and dunes (De5); tidal inlet (De6); backshore (De7); foreshore (De8); and proebb delta (De9). Note that outliers (open circles) are defined as an observation that is numerically distant from the rest of the data (i.e., a value that is 1.5 times the interquartile range below the lower quartile and above the upper quartile).