Florida Beach Atlas

Duval County Descriptions

Printable PDF Version

Munsell Color Classifications (pdf)

DU-01-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Shell-10%, Heavy Minerals-02%; Fossils: Mollusks
Return to Top

DU-01-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-04%; Fossils: Mollusks
Return to Top

DU-01-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-04%; Fossils: Mollusks
Return to Top

DU-02-SS
Sand; Yellowish Gray to Grayish Orange; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-25%; Fossils: Mollusks, Barnacles
Return to Top

DU-02-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-05%; Fossils: Mollusks
Return to Top

DU-02-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-01%; Fossils: Mollusks
Return to Top

DU-03-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Very Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-08%
Return to Top

DU-03-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-05%
Return to Top

DU-03-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%; Well-Sorted
Return to Top

DU-04-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-01%; Well-Sorted
Return to Top

DU-04-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Fragments
Return to Top

DU-04-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%
Return to Top

DU-05-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-03%
Return to Top

DU-05-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Coarse; Roundness: Sub-Angular to Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Fragments
Return to Top

DU-05-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%; Trace of Shell Fragments
Return to Top

DU-06-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Fragments
Return to Top

DU-06-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-05%; Trace of Shell Fragments
Return to Top

DU-06-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%; Trace of Shell Fragments; Well-Sorted
Return to Top

DU-07-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%; Trace of Shell Fragments
Return to Top

DU-07-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Fragments; Well-Sorted
Return to Top

DU-07-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%; Trace of Shell Fragments; Well-Sorted
Return to Top

DU-08-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-01%; Fossils: Mollusks, Barnacles
Return to Top

DU-08-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%; Trace of Shell Fragments
Return to Top

DU-08-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Fragments
Return to Top

DU-09-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%; Trace of Shell Fragments
Return to Top

DU-09-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell Fragments
Return to Top

DU-09-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-<1%
Return to Top

DU-10-SS
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-01%; Fossils: Mollusks
Return to Top

DU-10-MB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Trace of Shell Fragments;
Return to Top

DU-10-BB
Sand; Yellowish Gray; Grain Size: Medium; Range: Fine to Coarse; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Shell-02%; Well-Sorted
Return to Top

DU-11-SS
Silt; Light Olive Gray; Poor Induration; Cement Type(S): Clay Matrix; Accessory Minerals: Quartz Sand-15%, Clay-40%; Fossils: Mollusks; Trace of Mica
Return to Top

DU-11-MB
Sand; Very Light Orange; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Iron Stain-<1%,; Shell-<1%; Well-Sorted
Return to Top

DU-11-BB
Sand; Very Light Orange; Grain Size: Fine; Range: Fine to Medium; Roundness: Sub-Angular to Sub-Rounded; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-07%; Well-Sorted
Return to Top

DU-12
Sand; Very Light Orange; Grain Size: Fine; Range: Fine to Medium; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-01%, Plant Remains-<1%; Well-Sorted
Return to Top

DU-13-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Coarse; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%, Shell-05%; Fossils: Mollusks;
Return to Top

DU-13-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-10%; Trace of Shell Fragments
Return to Top

DU-13-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-15%
Return to Top

DU-14-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-12%; Trace of Mica
Return to Top

DU-14-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-10%; Well-Sorted
Return to Top

DU-15-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%
Return to Top

DU-15-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%; Well-Sorted; Trace of Shell Fragments
Return to Top

DU-15-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%; Well-Sorted; Trace of Shell Fragments
Return to Top

DU-16-SS
Sand; Light Olive Gray; Grain Size: Fine; Range: Very Fine to Medium; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-20%
Return to Top

DU-16-MB
Sand; Light Olive Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Sub-Angular to Sub-Rounded; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-20%
Return to Top

DU-16-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-05%; Trace of Shell
Return to Top

DU-17-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%; Trace of Shell
Return to Top

DU-17-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Trace of Shell
Return to Top

DU-17-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%; Well-Sorted; Trace of Shell
Return to Top

DU-18-SS
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Roundness: Angular to Sub-Angular; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-02%, Shell-02%
Return to Top

DU-18-MB
Sand; Yellowish Gray; Grain Size: Fine; Range: Fine to Medium; Low Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-03%, Shell-<1%
Return to Top

DU-18-BB
Sand; Yellowish Gray; Grain Size: Fine; Range: Very Fine to Medium; Roundness: Angular to Sub-Angular; Medium Sphericity; Unconsolidated; Accessory Minerals: Heavy Minerals-04%
Return to Top