1 x 107. Th-232sec. 1 x 100. 1 x 103. Th-234 (+). 1 x 103. 1 x 105. Pa-230 Pa-234m. U-230. Th-226, Ra-222, Rn-218, Po-214. U-232. Th-228, Ra-224, Rn-220 

5682

Th-234 deficit was enhanced with depth in the euphotic zone, reaching a subsurface maximum at the Chl-a maximum in most cases, as commonly observed in many oceanic regimes. Th-234 was in general in equilibrium with 238 U at a depth of ∼100 m, the bottom of the euphotic zone.

234TH. 234TH. 232ND. 230TH. Th-230. 104.

Th 234

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S.T .H . "7. 5" (2. 56. TH. AV. EN. UE. ) 234TH. AVE. ST. 62ND. 65TH.

This figure shows that the first two progeny of U-238 (Th-234 and Pa-234m) come back into secular equilibrium within approximately 30 days. The curves 

It transforms (or decays) into an atom with an atomic number 2 less and a mass number 4 less. Thus, uranium-238 decays through α αスペクトル 230 Th/ 234 U年代測定法の分解能と信頼性 大村 明雄 1) , 伊勢 明広 1) , 佐々木 圭一 1) , 新坂 孝志 1) , 長谷部 由美子 1) HHC 2/34th IBCT, Boone, Iowa. 230 likes · 10 talking about this.

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Th 234

1 mag . Coll . Sch . Sahlin , Th 234. 1.

Th-234+. 10. Yb-175. 10. Pa-230. 1. Lu-177.
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TH-219. TH-220. TH-221.

U Plats för braskamin. BK. Kvadratmeter är cirka. 229. 230.
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LNHB

2.52E+00. 2.52E+00. 2.52E+00. av I Östergren — Aktivitetskoncentrationer för uran-238 (Pa-234), radium-228 (Ac-228), radium-226.


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Th-230. 104. 1. Au-198. 106. 102. Th-231. 107. 103. Au-199. 106. 102. Th-232sec 103. 1. Hg-197. 107. 102. Th-234+ 105. 103. Hg-197m 106. 102. Pa-230. 106.

Pa-234. Prot.