Ads
related to: printable geologic time chart for kids worksheet template blank word
Search results
Results From The WOW.Com Content Network
The first shows the entire time from the formation of the Earth to the present, but this gives little space for the most recent eon. The second timeline shows an expanded view of the most recent eon. In a similar way, the most recent era is expanded in the third timeline, the most recent period is expanded in the fourth timeline, and the most ...
English: The geologic time scale proportionally represented as a log-spiral. Some key events in Earth's history are marked on the diagram, including major extinction events, global scale glaciations, the inanition of permanent atmospheric oxygen, the formation of the moon, and the formation of Earth's magnetic field.
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks).
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 ...
It is recommended not to use this parameter unless absolutely necessary. See Template:Geological range for more information. image_map Reconstruction of the Earth as it appeared during the geologic time span. caption_map Caption for the above image. image_outcrop Picture of a rock outcrop with rocks dating to the geologic time span. caption_outcrop
[[Category:Geological time navigation templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Geological time navigation templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.