DOI: 10.5061/dryad.jsxksn0kt
title: Data from: Modulation of deformation by magmatic tempo, Coast Mountains Batholith, British Columbia, Canada

description: The data is used to constrain the tectonmagmatic evolution of the southern
 Coast Mountains batholith from ca. 120 – 50 Ma.  Three periods of
 deformation coincide spatially and temporally with three periods of
 high-flux magmatism derived from mantle sources.  These results
 suggest that the deformation was modulated by episodic magmatism and so
 was not a driver of episodic magmatism.  During a period of
 high-flux magmatism, deformation style within the active arc reflects
 coeval relative plate motions; the timing of shifts in plate motions
 outside of these periods may not be recorded by the deformation.
description: Data were collected and analyzed through integrated field and
 laboratory work by the principal investigators and their students as more
 fully described in Rusmore et al., 2024. DOI:10.1029/2024TC008318 (open
 access).  Field work was conducted in the southern Coast Mountains of
 British Columbia on a NE-trending transect along Bute and Knight Inlets
 and in the region around Mount Waddington in 2014, 2015, and 2016.
  Analysis of structural, petrographic, and field data was conducted at
 Occidental College. The U-Pb geochronology was performed at the University
 of Arizona LaserChron Center (ALC); Ar geochronology was conducted at
 Stanford University.  Microprobe analysis used in hornblende
 geothermobarometry was conducted at the California Institute of
 Technology, Earth and Planetary Sciences division.  
description: # Supporting Information for Modulation of Deformation by Magmatic Tempo,
 Coast Mountains Batholith, British Columbia, Canada. Tectonics in press
 2024 DOI: 10.1029/2024TC008318
 [https://doi.org/10.5061/dryad.jsxksn0kt](https://doi.org/10.5061/dryad.jsxksn0kt) ## Description of the data and file structure **Description of the data and file structure** Data used in Rusmore et al., (2024) Modulation of Deformation by Magmatic Tempo, Coast Mountains Batholith, British Columbia, Canada, DOI: 10.1029/2024TC008318 are presented here in five files: 1.      Supplemental Information figures in “ SI_Figures_Rusmore_et_al._2024.pdf” (on Zenodo) Figure 1 shows weighted mean and concordia plots for all U-Pb zircon samples; Figure 2 has Ar spectra for nine biotite and seven hornblende ages obtained from nine intrusive rock samples.  Figure 3 has annotated BSE images showing spots analyzed in five intrusive rock samples for hornblende geothermobaromterty.   2.       U-Pb analyses in “Supplemental data table S01_U-Pb_Rusmore et al. xlsx”. This file contains all analytic data for 14 new U-Pb zircon ages presented in Rusmore et al., 2024. The data support the weighted mean and concordia plots in Supplemental Information Figure 1. 3.       Ar-Ar analyses in “Supplemental data table S02_Ar \_Rusmore et al. xlsx”. This file contains 40Ar/39Ar geochronology data used to date samples and is supported by Supplemental Information Figure 2. 4.       Analyses for hornblende geothermobarometry in “Supplemental data table S03_Hbl geobaromentry_Rusmore et al.xlsx”. These data are the basis for the pressures and temperatures of emplacement of plutons as presented in Rusmore et al. 2024.  Minerals analyzed are in Supplemental Information Figure3. 5.       Structural orientation data used in equal area lower hemisphere plots in “Supplemental data table S04_Stx_data_for_stereonets_Rusmore et al.xlsx”. Each data sheet is the structural data used in stereonets presented in Rusmore et al., 2014, as referenced on each sheet name.  All structural data are measured using standard protocols: Planar data are presented using the "right-hand rule": dip direction is 90 degrees to the right of the strike azimuth. Linear data are recorded as trend and plunge: trend is the azimuth of the linear feature in the down plunge direction, plunge is measured in degrees from horizonal. ### Files and variables #### File: Supplemental\_data\_table\_S01\_U-Pb\_Rusmore\_et\_al.xlsx **Description:** U-Pb geochronologic analyses for 14 new U-Pb zircon ages presented in Rusmore et al., 2024. The data support the weighted mean and concordia plots in Supplemental Information Figure 1. ##### Variables * ppm = parts per million; Ma = millions of years;   * = radiogenic component #### File: Supplemental\_data\_table\_S02\_Ar\_data\_table\_Rusmore\_et\_al.xlsx **Description:** Ar- Ar geochronologic analyses. This file contains 40Ar/39Ar geochronology data used to date samples and is supported by Supplemental Information Figure 2. ##### Variables *   s.d = standard deviation; Ma = millions of years, HBD = hornblende; BIO = biotite; SID =  lab sample identification number #### File: Supplemental\_data\_table\_S04\_Stx\_data\_for\_stereonets\_Rusmore\_et\_al.xlsx **Description:** This set of data tables contains all structural data that were used to prepare equal area, lower-hemisphere stereonets shown in Rusmore et al., 2024. Tab names refer to figure numbers where each data set is presented in Rusmore et al., 2024 ##### Variables *  UTM_ENAD83ZN10N and UTMNNAD83ZN10N = coordinates in Universal Transverse Mercator, North American Datum 83,  Zone 10; E = Easting, N = Northing. L= lineation; S = foliation; AP= axial pane; HL = hinge line; HLF_WL_cm = half wavelength in cm; KINE = kinematic sense; KINCONF = confidence in kinematic sense; CYL = cylindrical fold; PARASITIC = parasitic fold; TYPE = type of structure; NR = no record (text); 999 = no record (numeric) #### File: Supplemental\_data\_table\_S03\_Hbl\_geobaromentry\_Rusmore\_et\_al.xlsx **Description:** This file contains EPMA analyses for Hornblende geothermobarometry obtained at California Institute of Technology on JEOL8200; Caltech file pathway: C:\Probe_users\Users_all\Non-profit\Occidental\MR111016.MDB, file date 11/11/2016 8:43 PM Images of analyses grains are in Supplemental Figure 3 ##### Variables * Pl = plagioclase; Hbl = hornblende; Kfs = potassium feldspar,  #### File: SI\_Figures\_Rusmore\_et\_al.\_2024.pdf **Description:** Supplemental Information figures.  Figure 1 shows weighted mean and concordia plots for all U-Pb zircon samples; Figure 2 has Ar spectra for nine biotite and seven hornblende ages obtained from nine intrusive rock samples.  Figure 3 has annotated BSE images showing spots analyzed in five intrusive rock samples for hornblende geothermobaromterty.   ## Access information Other publicly accessible locations of the data: * Rusmore, M.E., et al.,(2024). Supporting Information for Modulation of Deformation by Magmatic Tempo, Coast Mountains Batholith, British Columbia, Canada. Tectonics in press 2024 DOI: 10.1029/2024TC008318