formation,sample,epoch or period,pH±2σ,REE slope±2σ,reference Akasaka,MA-1,Permian,7.376±0.068,3.976E-08±2.706E-09,Toyama and Terakado (2019) Minatogawa,RK-1,Quaternary,8.025±0.055,1.387E-08±2.212E-09,Toyama and Terakado (2019) Megami,MK-1,Neogene,8.187±0.091,7.426E-09±3.613E-09,Toyama and Terakado (2019) Kanokura,KK-1,Permian,8.006±0.026,1.465E-08±1.024E-09,Toyama and Terakado (2019) Onimaru,OM-1,Carboniferous,7.932±0.149,1.760E-08±5.932E-09,Toyama and Terakado (2019) Heron,H-1 ,Holocene,8.018±0.094,1.415E-08±3.738E-09,Webb and Kamber (2000) Heron,H1-5 1,Holocene,n/a,n/a,Webb and Kamber (2000) Heron,H1-6 c,Holocene,8.369±0.003,1.731E-10±1.201E-10,Webb and Kamber (2000) Heron,H1-11 ,Holocene,7.942±0.099,1.719E-08±3.928E-09,Webb and Kamber (2000) Heron,H1-12 ,Holocene,8.09±0.08,1.130E-08±3.175E-09,Webb and Kamber (2000) Heron,H-2,Holocene,7.774±0.118,2.390E-08±4.716E-09,Webb and Kamber (2000) Heron,H2-5 1,Holocene,n/a,n/a,Webb and Kamber (2000) Heron,H2-6 ,Holocene,7.903±0.129,1.874E-08±5.136E-09,Webb and Kamber (2000) Heron,H2-7 ,Holocene,8.052±0.086,1.280E-08±3.445E-09,Webb and Kamber (2000) Heron,H2-8 ,Holocene,8.053±0.094,1.278E-08±3.760E-09,Webb and Kamber (2000) Heron,H-9 ,Holocene,8.068±0.067,1.219E-08±2.664E-09,Webb and Kamber (2000) Heron,H-10 ,Holocene,7.988±0.109,1.536E-08±4.361E-09,Webb and Kamber (2000) Heron,H10-5a,Holocene,8.375±0.008,-7.161E-11±3.255E-10,Webb and Kamber (2000) Heron,H10-6,Holocene,8.172±0.049,8.006E-09±1.960E-09,Webb and Kamber (2000) Heron,H10-7,Holocene,8.165±0.047,8.306E-09±1.887E-09,Webb and Kamber (2000) Heron,H10-8,Holocene,8.155±0.064,8.688E-09±2.548E-09,Webb and Kamber (2000) Heron,H10-9,Holocene,8.02±0.086,1.408E-08±3.410E-09,Webb and Kamber (2000) Heron,H10-11,Holocene,8.164±0.048,8.324E-09±1.930E-09,Webb and Kamber (2000) Heron,H10-12,Holocene,8.173±0.043,7.994E-09±1.728E-09,Webb and Kamber (2000) Heron,H10-13,Holocene,8.164±0.04,8.337E-09±1.614E-09,Webb and Kamber (2000) Heron,H18-11,Holocene,8.171±0.054,8.069E-09±2.155E-09,Webb and Kamber (2000) Heron,H18-12,Holocene,8.091±0.089,1.127E-08±3.563E-09,Webb and Kamber (2000) Heron,H18-13,Holocene,8.104±0.074,1.075E-08±2.941E-09,Webb and Kamber (2000) Heron,H-19,Holocene,8.072±0.072,1.200E-08±2.865E-09,Webb and Kamber (2000) Heron,H-20,Holocene,8.141±0.074,9.260E-09±2.943E-09,Webb and Kamber (2000) Heron,H-21,Holocene,8.067±0.063,1.221E-08±2.509E-09,Webb and Kamber (2000) Heron,H-22,Holocene,8.05±0.071,1.288E-08±2.847E-09,Webb and Kamber (2000) Heron,H26.1,Holocene,8.143±0.05,9.162E-09±2.008E-09,Webb and Kamber (2000) Heron,H-26.2,Holocene,8.148±0.055,8.982E-09±2.208E-09,Webb and Kamber (2000) Heron,H-26.3,Holocene,8.088±0.054,1.139E-08±2.172E-09,Webb and Kamber (2000) Heron,H2-9,Holocene,8.018±0.082,1.416E-08±3.285E-09,Webb and Kamber (2000) Heron,H2-10,Holocene,8.07±0.067,1.211E-08±2.655E-09,Webb and Kamber (2000) Heron,H2-11,Holocene,8.029±0.091,1.372E-08±3.628E-09,Webb and Kamber (2000) Heron,H-3,Holocene,7.961±0.082,1.644E-08±3.260E-09,Webb and Kamber (2000) Heron,H-4,Holocene,8.025±0.071,1.389E-08±2.850E-09,Webb and Kamber (2000) Heron,H-6,Holocene,8.133±0.057,9.571E-09±2.266E-09,Webb and Kamber (2000) Heron,H6-5,Holocene,8.374±0.007,-4.949E-11±2.619E-10,Webb and Kamber (2000) Heron,H6-7,Holocene,8.147±0.046,9.012E-09±1.817E-09,Webb and Kamber (2000) Heron,H-7,Holocene,8.167±0.046,8.235E-09±1.837E-09,Webb and Kamber (2000) Heron,H-8,Holocene,8.062±0.081,1.240E-08±3.250E-09,Webb and Kamber (2000) Heron,H10-14,Holocene,8.043±0.092,1.318E-08±3.664E-09,Webb and Kamber (2000) Heron,H-12,Holocene,8.093±0.086,1.119E-08±3.433E-09,Webb and Kamber (2000) Heron,H13-5,Holocene,8.519±0.177,-5.820E-09±7.049E-09,Webb and Kamber (2000) Heron,H13-6,Holocene,7.818±0.053,2.212E-08±2.104E-09,Webb and Kamber (2000) Heron,H13-7,Holocene,8.082±0.108,1.163E-08±4.289E-09,Webb and Kamber (2000) Heron,H-15,Holocene,8.089±0.062,1.132E-08±2.468E-09,Webb and Kamber (2000) Heron,H-16,Holocene,7.996±0.036,1.505E-08±1.434E-09,Webb and Kamber (2000) Heron,H18-5,Holocene,8.359±0.012,5.486E-10±4.871E-10,Webb and Kamber (2000) Heron,H18-9,Holocene,8.047±0.098,1.301E-08±3.898E-09,Webb and Kamber (2000) Heron,H18-10,Holocene,7.931±0.097,1.762E-08±3.866E-09,Webb and Kamber (2000) Heron,H-26.4,Holocene,8.134±0.053,9.541E-09±2.113E-09,Webb and Kamber (2000) Heron,H-27.1,Holocene,8.089±0.059,1.135E-08±2.371E-09,Webb and Kamber (2000) Heron,H-27.2,Holocene,8.125±0.046,9.880E-09±1.844E-09,Webb and Kamber (2000) Heron,H-27.3,Holocene,8.152±0.034,8.804E-09±1.337E-09,Webb and Kamber (2000) Heron,H-27.4,Holocene,8.149±0.032,8.948E-09±1.292E-09,Webb and Kamber (2000) Heron,H-28.1,Holocene,8.07±0.076,1.210E-08±3.038E-09,Webb and Kamber (2000) Heron,H-28.2,Holocene,8.103±0.069,1.078E-08±2.748E-09,Webb and Kamber (2000) Heron,H-28.3,Holocene,8.154±0.057,8.731E-09±2.268E-09,Webb and Kamber (2000) Heron,H-28.4,Holocene,8.06±0.093,1.249E-08±3.696E-09,Webb and Kamber (2000) Pedro Castle,BW#1,Pliocene,7.678±0.074,2.774E-08±2.945E-09,Zhao and Jones (2013) Pedro Castle,SQW#1,Pliocene,8.116±0.073,1.027E-08±2.899E-09,Zhao and Jones (2013) Cayman,NSC#1,Miocene,8.111±0.182,1.046E-08±7.266E-09,Zhao and Jones (2013) Cayman,NSC#1,Miocene,8.061±0.238,1.245E-08±9.499E-09,Zhao and Jones (2013) Fulra,FL1,Eocene,7.869±0.321,2.012E-08±1.278E-08,Srivastava and Singh (2017) Fulra,FL2,Eocene,7.71±0.5,2.646E-08±1.995E-08,Srivastava and Singh (2017) Fulra,FL3,Eocene,8.1±0.143,1.090E-08±5.709E-09,Srivastava and Singh (2017) Fulra,FL4,Eocene,8.053±0.182,1.278E-08±7.269E-09,Srivastava and Singh (2017) Fulra,FL5,Eocene,8.181±0.492,7.653E-09±1.962E-08,Srivastava and Singh (2017) Fulra,FL6,Eocene,8.124±0.366,9.923E-09±1.460E-08,Srivastava and Singh (2017) Fulra,FL7,Eocene,7.938±0.824,1.737E-08±3.287E-08,Srivastava and Singh (2017) Fulra,FL8,Eocene,7.818±0.831,2.213E-08±3.315E-08,Srivastava and Singh (2017) Fulra,FL9,Eocene,7.84±0.728,2.125E-08±2.904E-08,Srivastava and Singh (2017) Fulra,FL10,Eocene,8.062±0.156,1.241E-08±6.206E-09,Srivastava and Singh (2017) Fulra,FL11,Eocene,8.001±0.143,1.485E-08±5.700E-09,Srivastava and Singh (2017) Fulra,FL12,Eocene,8.143±0.254,9.173E-09±1.015E-08,Srivastava and Singh (2017) Khuiala ,k-2,Eocene,7.568±0.338,3.210E-08±1.349E-08,Patra and Singh (2017) Khuiala ,k-4,Eocene,7.498±0.659,3.490E-08±2.627E-08,Patra and Singh (2017) Khuiala ,k-5,Eocene,7.611±0.574,3.040E-08±2.288E-08,Patra and Singh (2017) Khuiala ,k-7,Eocene,7.533±0.624,3.350E-08±2.490E-08,Patra and Singh (2017) Khuiala ,k-8,Eocene,8.09±0.482,1.131E-08±1.924E-08,Patra and Singh (2017) Khuiala ,k-9,Eocene,7.885±0.289,1.949E-08±1.151E-08,Patra and Singh (2017) Khuiala ,k-10,Eocene,7.81±0.249,2.245E-08±9.913E-09,Patra and Singh (2017) Khuiala ,k-11,Eocene,7.767±0.39,2.418E-08±1.557E-08,Patra and Singh (2017) Khuiala ,k-13,Eocene,8.22±0.388,6.107E-09±1.549E-08,Patra and Singh (2017) Khuiala ,k-15,Eocene,7.638±0.505,2.933E-08±2.016E-08,Patra and Singh (2017) Khuiala ,k-16,Eocene,7.821±0.453,2.203E-08±1.807E-08,Patra and Singh (2017) Khuiala ,k-17,Eocene,7.767±0.448,2.416E-08±1.788E-08,Patra and Singh (2017) Maieberg,S3FSF-22,Ediacaran,7.70±0.49,2.69e-08 ± 1.97e-08,"Rodler et al., (2016)" Maieberg,S3FSF-23,Ediacaran,8.16±0.20,8.63e-09 ± 7.89e-09,"Rodler et al., (2016)" Maieberg,S3FSF-24,Ediacaran,7.98±0.44,1.58e-08 ± 1.76e-08,"Rodler et al., (2016)" Maieberg,S3FSF-26,Ediacaran,6.86±1.38,6.04e-08 ± 5.50e-08,"Rodler et al., (2016)" Maieberg,S3FSF-27,Ediacaran,7.81±0.82,2.24e-08±3.27e-08,"Rodler et al., (2016)" Maieberg,S3FSF-28,Ediacaran,7.98±0.52,1.58e-08±2.07e-08,"Rodler et al., (2016)" Maieberg,S4FSF-29,Ediacaran,8.07±0.44,1.19e-08±1.75e-08,"Rodler et al., (2016)" Maieberg,S4FSF-30,Ediacaran,8.24±0.56,5.33e-09±2.23e-08,"Rodler et al., (2016)" Maieberg,S4FSF-31a,Ediacaran,8.38±0.06,-2.15e-10±2.20e-09,"Rodler et al., (2016)" Maieberg,S4FSF-31b,Ediacaran,8.25±0.51,5.04e-09±2.03e-08,"Rodler et al., (2016)" Maieberg,S4FSF-32,Ediacaran,8.36±0.60,5.23e-10±2.39e-08,"Rodler et al., (2016)"