Abundant evidence supports the major contentions of the seafloor-spreading theory. First, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.irst, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.
Polk County Weather. The average temperature of Polk County is 72.96Â°F, which is higher than the Florida average temperature of 71.80Â°F and is much higher than the national average temperature of 54.45Â°F. Historical Weather. Heating Cost Index, #14.
July 2014 was the 7th wettest in Tampa and the 10th wettest on record at Miami, and it was the 2nd driest in Tallahassee (the driest was in 1918, with only 1.28â reported for the month) and it was 8th driest on record in Jacksonville. There were multiple 24-hour precipitation records broken for the month (Table 3).