Definition of isochron in English:

isochron

noun ˈʌɪsə(ʊ)krɒnˈīsəˌkrän

Geology

A line on a diagram or map connecting points relating to the same time or equal times.
〔主地质〕等时线
Example sentencesExamples
- Age of movement has been deduced from Rb-Sr mineral isochrons.
- Steve Austin describes the three methods of radioactive dating: 1) the model age, 2) the whole rock isochron, and 3) the mineral isochron.
- Although areas of slow propagation (crowding of isochrones) can be identified, no reentrant activity can be seen on the surface.
- But now we know that meaningless isochrons can be ‘inherited’ from pre-existing rocks.
- An isochron defined by only two rutile points yields an age of 384 + / - 4 Ma.

Origin

Late 17th century (as an adjective in the sense 'isochronous'): from Greek isokhronos, from isos 'equal' + khronos 'time'.

Definition of isochron in US English:

isochron

nounˈīsəˌkrän

Geology

A line on a diagram or map connecting points relating to the same time or equal times.
〔主地质〕等时线
Example sentencesExamples
- An isochron defined by only two rutile points yields an age of 384 + / - 4 Ma.
- Steve Austin describes the three methods of radioactive dating: 1) the model age, 2) the whole rock isochron, and 3) the mineral isochron.
- But now we know that meaningless isochrons can be ‘inherited’ from pre-existing rocks.
- Age of movement has been deduced from Rb-Sr mineral isochrons.
- Although areas of slow propagation (crowding of isochrones) can be identified, no reentrant activity can be seen on the surface.

Origin

Late 17th century (as an adjective in the sense ‘isochronous’): from Greek isokhronos, from isos ‘equal’ + khronos ‘time’.

单词	isochron
释义	Definition of isochron in English: isochron noun ˈʌɪsə(ʊ)krɒnˈīsəˌkrän Geology A line on a diagram or map connecting points relating to the same time or equal times. 〔主地质〕等时线 Example sentencesExamples Age of movement has been deduced from Rb-Sr mineral isochrons. Steve Austin describes the three methods of radioactive dating: 1) the model age, 2) the whole rock isochron, and 3) the mineral isochron. Although areas of slow propagation (crowding of isochrones) can be identified, no reentrant activity can be seen on the surface. But now we know that meaningless isochrons can be ‘inherited’ from pre-existing rocks. An isochron defined by only two rutile points yields an age of 384 + / - 4 Ma. Origin Late 17th century (as an adjective in the sense 'isochronous'): from Greek isokhronos, from isos 'equal' + khronos 'time'. Definition of isochron in US English: isochron nounˈīsəˌkrän Geology A line on a diagram or map connecting points relating to the same time or equal times. 〔主地质〕等时线 Example sentencesExamples An isochron defined by only two rutile points yields an age of 384 + / - 4 Ma. Steve Austin describes the three methods of radioactive dating: 1) the model age, 2) the whole rock isochron, and 3) the mineral isochron. But now we know that meaningless isochrons can be ‘inherited’ from pre-existing rocks. Age of movement has been deduced from Rb-Sr mineral isochrons. Although areas of slow propagation (crowding of isochrones) can be identified, no reentrant activity can be seen on the surface. Origin Late 17th century (as an adjective in the sense ‘isochronous’): from Greek isokhronos, from isos ‘equal’ + khronos ‘time’.
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