chron
chron
1. A small unit of geologic time, equivalent to the chronostratigraphic unit chronozone, usually based on fossil zonation (see BIOCHRON). When used formally (e.g. Gilbert Chron) the initial letter is capitalized.
2. A single time interval of constant polarity of the geomagnetic field (polarity chron).
1. A small unit of geologic time, equivalent to the chronostratigraphic unit chronozone, usually based on fossil zonation (see BIOCHRON). When used formally (e.g. Gilbert Chron) the initial letter is capitalized.
2. A single time interval of constant polarity of the geomagnetic field (polarity chron).
chron
chron
chron
1. A small unit of geologic time, equivalent to the chronostratigraphic unit chronozone, that is usually based on fossil zonation. When used formally (e.g. Gilbert Chron) the initial letter is capitalized.
2. (polarity chron) A single time interval of constant polarity of the geomagnetic field.
1. A small unit of geologic time, equivalent to the chronostratigraphic unit chronozone, that is usually based on fossil zonation. When used formally (e.g. Gilbert Chron) the initial letter is capitalized.
2. (polarity chron) A single time interval of constant polarity of the geomagnetic field.
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