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jmdict 2242360 Active (id: 2177544)
K-T境界KT境界
ケイティーきょうかい
1. [n] {geology}
▶ K-T boundary (between the Cretaceous period and the Tertiary period)



History:
4. A 2022-02-04 05:03:57  Jim Breen <...address hidden...>
  Refs:
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/cretaceous-period
  Comments:
Yes. Most writers in the field use "Period" too - see the extracts in the reference site.
3. A* 2022-02-03 12:31:29  Marcus Richert <...address hidden...>
  Comments:
should "tertiary" be capitalized?
  Diff:
@@ -15 +15,2 @@
-<gloss>K-T boundary (between the Cretaceous Period and the Tertiary Period)</gloss>
+<field>&geol;</field>
+<gloss>K-T boundary (between the Cretaceous period and the Tertiary period)</gloss>
2. A 2021-07-15 02:24:02  Jim Breen <...address hidden...>
  Comments:
Regularizing hyphen usage. Simplifying too.
  Diff:
@@ -5 +5 @@
-<keb>K−T境界</keb>
+<keb>K-T境界</keb>
@@ -11,4 +10,0 @@
-<reb>ケイーティーきょうかい</reb>
-<re_restr>K−T境界</re_restr>
-</r_ele>
-<r_ele>
@@ -16 +11,0 @@
-<re_restr>KT境界</re_restr>
1. A 2007-12-20 00:00:00 
  Comments:
Entry created

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