Describe the Logic Behind Using Iridium Concentrations to Determine Rates

question 61

Essay

Describe the logic behind using iridium concentrations to determine rates of sedimentation.Under what conditions do the assumptions in this method break down? How is iridium concentration linked to the mass extinction at the K-T boundary?

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Definitions:

Power Elite

A small group of powerful individuals who hold a disproportionate amount of wealth, privilege, and political power.

American Population

The total number of people residing in the United States of America, encompassing a wide diversity of ethnicities, cultures, and races.

Pluralist Model

A system of political power in which a wide variety of individuals and groups have equal access to resources and the mechanisms of power.

Political Parties

Organized groups of people with similar political aims and opinions, seeking to influence public policy by gaining power through elections.