a line on an isotope ratio diagram denoting a suite of rock or mineral samples all formed at the same time. The slope of the line is related to the age of the rock or mineral suite
a line or curve on a geological map or cross section (esp of oceanic crust) connecting points of identical age
[ahy-sok-ruh-nl] /aɪˈsɒk rə nl/ adjective 1. equal or uniform in time. 2. performed in equal intervals of time. 3. characterized by motions or vibrations of equal duration. /aɪˈsɒkrənəl/ adjective 1. having the same duration; equal in time 2. occurring at equal time intervals; having a uniform period of vibration or oscillation
[ahy-suh-krohn] /ˈaɪ səˌkroʊn/ noun 1. a line, as on a map, connecting all points having some property simultaneously, as in having the same delay in receiving a radio signal from a given source or requiring the same time to be reached by available transportation from a given center. /ˈaɪsəʊˌkrəʊn/ noun 1. a line on a […]
isochronia i·so·chro·ni·a (ī’sə-krō’nē-ə) n.
[ahy-sok-ruh-niz-uh m] /aɪˈsɒk rəˌnɪz əm/ noun 1. an isochronal character or action.