Sediment Prediction Tools Off The Mark Date: February 5, 2008 ... The problem, she said, is that the most widely used models all begin with the same tool, the Universal Sediment Loss Equation.

Boomer has been examining the tools scientists and managers use to predict how much sediment runs into the Chesapeake Bay, and by her account, they are way off the mark.

One such tool is a new sediment curve (which shows where sediment-on-the-move is deposited), derived from sediments of the Paleozoic Era 542 to 251 million years ago, scientists report in this ...

Excavations and sediment screening at ... Radiocarbon dating of animal bones bearing stone tool marks places these discoveries at between 35,000 and 40,000 years old. To understand the tool ...

Forbes contributors publish independent expert analyses and insights. The researchers looked at more than 4,000 bones and found over 480 marks to determine how many other fossils from the Dikika ...

Finding these signs of industrial activity in deep sea sediments far from the coast reminds us that even these deep marine ecosystems are not immune to our actions, warns Joan Cartes, ICM researcher.

Gravel-bed rivers are dynamic systems where sediment transport plays a crucial role in sculpting channel morphology and influencing ecological as well as engineering outcomes.

By the end of 2013, the dating of those deposits was finally complete. The sediments, and thus the tools themselves, were 3.3 million years old—almost three-quarters of a million years older ...