List of tables |
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ix | |
List of figures |
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xi | |
Preface |
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xiii | |
1 Introduction |
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1 | (12) |
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1.1 What are fission tracks? |
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1 | (1) |
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1.2 How are they observed? |
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1 | (2) |
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3 | (1) |
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1.4 Applications of fission track analysis |
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4 | (1) |
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1.5 Mathematical representation of fission tracks |
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5 | (1) |
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1.6 Fission track dating and provenance studies |
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5 | (1) |
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1.7 Thermal histories and track length distributions |
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5 | (2) |
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1.8 Sampling by plane section |
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7 | (1) |
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1.9 Initial formation of tracks |
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8 | (1) |
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1.10 Shortening of tracks by heat |
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8 | (3) |
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1.11 Properties of apatite |
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11 | (1) |
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12 | (1) |
2 The Poisson line segment model |
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13 | (14) |
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2.1 Joint distribution of length and orientation |
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14 | (3) |
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2.2 The number of tracks with a given attribute |
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17 | (1) |
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2.3 The expected number of tracks intersecting a plane |
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18 | (2) |
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2.4 Track density and equivalent isotropic length |
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20 | (1) |
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2.5 Tracks intersecting a prismatic face |
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21 | (1) |
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2.6 Effect of non-prismatic face on track density |
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22 | (1) |
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2.7 Track counts from a dosimeter glass |
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23 | (2) |
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2.8 Spatial and temporal variation |
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25 | (1) |
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26 | (1) |
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26 | (1) |
3 Track counts and densities: fission track dating |
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27 | (30) |
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3.1 The mathematical basis of fission track dating |
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28 | (3) |
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3.2 The external detector method |
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31 | (3) |
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3.3 Observed and theoretical track densities |
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34 | (2) |
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36 | (1) |
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3.5 Estimates of fission track age |
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37 | (3) |
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3.6 Inspection of single grain data |
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40 | (1) |
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3.7 Radial plot of single grain ages |
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41 | (5) |
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3.8 Chi-square age homogeneity test |
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46 | (1) |
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3.9 A measure of age dispersion |
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47 | (3) |
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3.10 A protocol for data analysis |
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50 | (1) |
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3.11 Dealing with small counts |
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50 | (2) |
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3.12 Practical considerations |
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52 | (2) |
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54 | (1) |
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55 | (2) |
4 The population method |
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57 | (20) |
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4.1 Experimental method and data |
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57 | (2) |
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4.2 Theoretical and observed track densities |
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59 | (3) |
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4.3 An estimate of the uranium dispersion |
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62 | (1) |
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4.4 A uranium homogeneity test |
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62 | (1) |
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4.5 Estimates of fission track age |
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63 | (2) |
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4.6 Summarising and inspecting the data |
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65 | (4) |
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69 | (1) |
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4.8 A measure of dispersion of true fission track ages |
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70 | (1) |
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4.9 Counts over unequal areas |
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71 | (1) |
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4.10 A protocol for data analysis |
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72 | (1) |
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72 | (1) |
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4.12 The population-subtraction method |
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73 | (2) |
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75 | (1) |
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76 | (1) |
5 Discrete mixtures of ages |
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77 | (18) |
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5.1 Maximum likelihood estimation of a common age |
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78 | (2) |
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5.2 Discrete mixture models |
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80 | (2) |
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5.3 Example: a synthetic mixture of two ages |
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82 | (2) |
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5.4 Example: apatite data from the Bengal Fan |
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84 | (2) |
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5.5 Maximum likelihood estimation formulae |
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86 | (4) |
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5.6 How many ages to fit? |
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90 | (1) |
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5.7 Example: zircon ages from Mount Tom |
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91 | (2) |
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5.8 Data from more than one irradiation |
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93 | (1) |
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94 | (1) |
6 Continuous mixtures of ages |
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95 | (20) |
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6.1 Example: Otway data from Australia |
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95 | (2) |
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97 | (1) |
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6.3 A random effects model with binomial errors |
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97 | (2) |
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6.4 Maximum likelihood estimation formulae |
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99 | (1) |
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6.5 A random effects model with Normal errors |
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100 | (1) |
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101 | (2) |
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6.7 Finite mixtures of random effects models |
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103 | (1) |
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104 | (1) |
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6.9 Data and statistical model with binomial errors |
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105 | (1) |
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6.10 Maximum likelihood estimation formulae |
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106 | (1) |
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6.11 A minimum age model with Normal errors |
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107 | (1) |
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6.12 Example: apatite data from China |
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108 | (4) |
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6.13 A synthetic mixture re-visited |
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112 | (1) |
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6.14 Grain age distributions |
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113 | (1) |
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114 | (1) |
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114 | (1) |
7 Probability distributions of lengths and angles |
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115 | (28) |
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7.1 All tracks having the same length |
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115 | (4) |
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7.2 Each track having one of two lengths |
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119 | (1) |
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7.3 Several different lengths |
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120 | (1) |
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7.4 A general isotropic length distribution |
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121 | (1) |
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7.5 A general anisotropic length distribution |
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122 | (2) |
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7.6 Distributions on a prismatic face |
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124 | (5) |
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7.7 Horizontal confined track lengths |
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129 | (2) |
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7.8 Some explicit formulae |
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131 | (3) |
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7.9 A two-component mixture of anisotropic lengths |
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134 | (1) |
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7.10 Quantitative effects of anisotropy |
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135 | (5) |
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7.11 Parametric models for length against angle |
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140 | (2) |
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142 | (1) |
8 Observational features of track measurements |
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143 | (20) |
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8.1 Horizontal confined tracks |
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143 | (5) |
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148 | (1) |
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8.3 The Loaded Dog experiments |
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149 | (2) |
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8.4 Empirical verification of length bias |
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151 | (2) |
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8.5 Fracture-thickness bias |
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153 | (1) |
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154 | (3) |
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8.7 Surface proximity bias |
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157 | (1) |
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8.8 Estimates of μ from horizontal confined tracks |
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158 | (1) |
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8.9 Projected semi-track lengths and angles |
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158 | (4) |
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8.10 Semi-track lengths and angles |
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162 | (1) |
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162 | (1) |
9 Further developments |
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163 | (18) |
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9.1 Thermal history parameters |
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163 | (2) |
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9.2 Combined likelihood for track measurements |
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165 | (4) |
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9.3 Annealing experiments |
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169 | (1) |
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170 | (1) |
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171 | (2) |
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9.6 Fitting annealing models |
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173 | (3) |
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9.7 Calculating the length distribution from a thermal history |
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176 | (2) |
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9.8 Inferring times and temperatures from lengths |
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178 | (1) |
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9.9 Multi-compositional annealing models |
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179 | (1) |
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180 | (1) |
Appendix Notes on statistical methods |
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181 | (20) |
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A.1 Poisson processes in one, two and three dimensions |
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181 | (3) |
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A.2 Notes on the Poisson distribution |
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184 | (1) |
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A.3 Relation between the binomial and Poisson distributions |
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185 | (1) |
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A.4 Standard errors and confidence intervals |
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186 | (2) |
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188 | (1) |
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A.6 Precision and accuracy |
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189 | (1) |
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A.7 Statistical significance tests and p-values |
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189 | (2) |
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191 | (3) |
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A.9 Histograms and "probability density" plots |
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194 | (1) |
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A.10 Parametric models and likelihood inference |
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195 | (6) |
References |
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201 | (8) |
Index |
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209 | |