Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

2) Our colleagues at the Lawrence Livermore National Laboratory measured the ratios of 147Sm and 143Nd, relative to 144Nd , in several mineral grains from

image text in transcribed
2) Our colleagues at the Lawrence Livermore National Laboratory measured the ratios of 147Sm and 143Nd, relative to 144Nd , in several mineral grains from calcium aluminum inclusions (CAIs ) from the Allende meteorite , with results given in their Table 1 that is reproduced below (the relevant columns are outlined in red). We will treat 143Nd as a stable isotope because it decays exceptionally slowly (half life of 229 trillion years ). Table ! (354 CAI Sam-Nd isotopic data. Fraction Wt Sm (ppm) (ppe) Mel Pyx 4202 13.54 0.18751 419 1.141814 4:4 0.512332# 0.348396 #1 0.241573 #1 C FORSECO 1051 1936 6.853 0.17076 4 17 1.141785 4:4 0.511825# 0.348395 41 0.241573 #1 0.236402 42 Pyx 726 226 0.23204 452 1.141894 45 0513565 4 0.348394 #1 0.241577 #1 0.236433 #2 4x- 326 54 23 0.20878 4:21 1.141809 4:3 0.512985 0.348397 41 0.241508#1 0.236421 #2 *2 12 2.802 0.17172 #11 1.141789 4 11 0.348395 #1 0.241571 #3 35033 17 Fees 152 82 2874 9141 1.141819 4 4 0348397 #1 02158 #1 0.236438 # 2 JAN N4 304 (N - 37) 1.141837 4:7' 0.512101 4:7 0.345402 4 4 0.241578 #5 0.235456 46 Abbreviations for min ed from the and standards run * Error limits apply to Jus 50% of th andratically. Normalized to Ngstind = 0.7219. Uncertainties refer to last digits and are 20. (2 x stan d error of measured bot * Uncertainties refer to last digits and are 20, (2 x standard deviation of pop o, (from standard runs) or 20. (from mea 105mmNd corrected for macdeasy sing San and Nd isotopic d on 11 bulk Allende CAis by Brennecka et at (2011, 2012, 2013) Total effect is

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Macroeconomics

Authors: Andrew B. Abel, Ben S. Bernanke, Dean Croushore, Ronald D. Kneebone

6th Canadian Edition

321675606, 978-0321675606

Students also viewed these Mathematics questions