Descriptions of rock samples and zircons used for "Zircon U–Pb dates from the Taiheizan Complex Plutons in Akita Prefecture, NE Japan"

<p><strong>Fig. A-A1.</strong> Photomicrograph of biotite–hornblende porphyry granite(sample FSN21-01) under crossed-polarized light.</p> <p><strong>Fig. A-A2</strong>. Stacked cathodoluminescence (CL) images of zircon grains from sample FSN21-01. Red circles show the locations of U–Pb spot analyses. Analysis numbers correspond to the last two digits in the sample code in Table A-B3.</p> <p><strong>Fig. A-A3</strong>. Photomicrograph of biotite porphyry granite (sample FSN21-03a) under crossed-polarized light.</p> <p>Fig. A-A4. Stacked CL images of zircon grains separated from sample FSN21-03a. Red circles show the locations of U–Pb spot analyses. Analysis numbers correspond to the last two digits in the sample code in Table A-B4.</p> <p><strong>Fig. A-A5.</strong> Stacked CL images of zircon grains separated from sample FSN21-03b. Red circles show the locations of U–Pb spot analyses. Analysis numbers correspond to the last two digits in the sample code in Table A-B5.</p> <p><strong>Fig. A-A6</strong>. Photomicrograph of biotite–hornblende granodiorite (sample FSN21-06) under plane-polarized light.</p> <p><strong>Fig. A-A7</strong>. Stacked CL images of zircon grains separated from sample FSN21-06. Red circles show the locations of U–Pb spot analyses. Analysis numbers correspond to the last two digits in the sample code in Table A-B6.</p> <p><strong>Fig. A-A8</strong>. Photomicrograph of hornblende–biotite granodiorite (sample FSN21-12) under plane-polarized light.</p> <p><strong>Fig. A-A9</strong>. Backscattered electron image of a polyphase felsic melt inclusion in a zircon grain (to the immediate lower right of spot 7 in Fig. A-A10) from sample FSN21-12.</p> <p><strong>Fig. A-A10</strong>. Stacked CL images of zircon grains separated from sample FSN21-12. Red circles show the locations of U–Pb spot analyses. Analysis numbers correspond to the last two digits in the sample code in Table A-B7.</p> <p><br></p> <p><strong>Table A-B1</strong>. Analytical conditions used for zircon U–Pb dating.</p> <p><strong>Table A-B2.</strong> U–Pb isotopes and dates of the OD-3.</p> <p><strong>Table A-B3.</strong> U–Pb isotopes and dates of sample FSN21-01.</p> <p><strong>Table A-B4</strong>. U–Pb isotopes and dates of sample FSN21-03a.</p> <p><strong>Table A-B5</strong>. U–Pb isotopes and dates of sample FSN21-03b.</p> <p><strong>Table A-B6</strong>. U–Pb isotopes and dates of sample FSN21-06.</p> <p><strong>Table A-B7</strong>. U–Pb isotopes and dates of sample FSN21-12.</p>