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The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years.. The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.
Geologic time shown in a diagram called a geological clock, showing the relative lengths of the eons of Earth's history and noting major events The geological history of the Earth follows the major geological events in Earth's past based on the geological time scale , a system of chronological measurement based on the study of the planet's rock ...
Geologic timeline can refer to: The geologic time scale of Earth history. The historical development of the science of geology, as in the timeline of geology article.
Geologic time is the timescale used to calculate dates in the planet's geologic history from its origin (currently estimated to have been some 4,600 million years ago) to the present day. Radiometric dating measures the steady decay of radioactive elements in an object to determine its age. It is used to calculate dates for the older part of ...
The history of the Earth can be organized chronologically according to the geologic time scale, which is split into intervals based on stratigraphic analysis. [ 2 ] [ 21 ] The following five timelines show the geologic time scale to scale.
The Geologic Calendar is a scale in which the geological timespan of the Earth is mapped onto a calendrical year; that is to say, the day one of the Earth took place on a geologic January 1 at precisely midnight, and today's date and time is December 31 at midnight. [1]
Timeline of geology. Early works. c. 1025 – al-Biruni publishes the Kitāb fī Taḥqīq mā li-l-Hind (Researches on India), in which he discusses the geology of ...
Pages in category "Geology timelines" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. * Timeline of geology +