![]() ![]() Slack for Windows 4.27.154 (64-bit) - You may have noticed that with this release there’s a new, larger number at the end of the version string. Security Guidance: - This release includes minor security improvements. “Haunted Slack” launches in 2025, but until then we must insist all ghosts be unambiguously busted. Dragging the Slack window between multiple displays was resulting in some spooky behavior, like the window snapping to locations where you distinctly did not drop it. If you don’t use symlinks, well, this note doesn’t apply to you, but we appreciate you reading anyway. If you’re someone who uses a symlink for your %appdata% folder and noticed that Slack was crashing on startup, we have some good news: Slack won’t be crashing anymore. We’d like to say that this was because the idea of “capture” is antithetical to “sharing,” but in truth it was just a “bug.” - Sharing your screen and then right-clicking the Slack icon in the taskbar made you the winner of a secret game. 1, we’ll be deprecating support for some older operating systems and outdated versions of Slack Fixed: - Trying to capture your screen with a third-party app while also sharing your screen in Slack may have resulted in the non-Slack app crashing. Slack for Windows 4.28.171 (64-bit) New: - On Sept. Everything is now running smoothly again Slack for Windows 4.29.144 (64-bit) - Change log not available for this version Slack for Windows 4.28.184 (64-bit) - Change log not available for this version Slack for Windows 4.28.182 (64-bit) - This release includes significant security improvements. Slack for Windows 4.29.149 (64-bit) Fixed: - We tuned up the engine and gave the interiors a thorough clean. Slack for Windows 4.31.152 (64-bit) Fixed: - We’ve tinkered with the internal workings and polished some rough edges. Everything is now running smoothly again. Slack for Windows 4.31.155 (64-bit) Fixed: - We tuned up the engine and gave the interiors a thorough clean. Slack for Windows 4.32.122 (64-bit) - This release includes minor security improvements. Slack for Windows 4.32.126 (64-bit) - We’ve tinkered with the internal workings and polished some rough edges. Slack for Windows 4.32.127 (64-bit) - We tuned up the engine and gave the interiors a thorough clean. The Nd-Pb isotopic attributes can be used in exploration for additional REE deposits in the Mesoproterozoic rocks of the eastern Granite-Rhyolite Province.Slack for Windows 4.33.73 (64-bit) Security Guidance: - This release includes minor security improvements. The Pea Ridge deposit represents an excellent example of an igneous-dominated hydrothermal system and defines a distinctive Nd-Pb isotopic target that involved coeval igneous magmatism and REE mineralization. No evidence exists for major overprinting by younger, crustal meteoric fluids, or by externally derived Nd. Pb isotope results for the felsic hosts overlap those of galena in the REE-breccia ore. Whole rock Pb isotopes of REE-rich breccia, Fe-ores and host rocks have a wide range in values and are more radiogenic than galena. The Nd and Pb isotope data indicate that the Pea Ridge deposit was part of a system that produced a uniform isotopic composition. Our results suggest that host rocks, REE-rich breccias, and Fe-ores share a common origin from a similar source. The felsic host rocks are depleted in HFSE (e.g., Nb, Ta, Ti, P) and Sr, and lack positive Pb anomalies in mantle-normalized plots. Nd isotope data show: (1) felsic hosts have e Nd values from 3.44 to 4.25 (2) REE-rich breccias have similar e Nd values from 3.04 to 4.11 (3) Fe-ores display e Nd values from 3.04 to 4.21. Immobile trace elements (e.g., Nb/Y, Zr/Ti) indicate that the felsic host rocks are subalkaline dacite and rhyolite having geochemical attributes typical of rocks produced by subduction. Nd isotope data yield depleted mantle model ages (T DM) of ~1.51 to 1.59 Ga for rhyolites, 1.51 to 1.6 Ga for REE-rich breccias, and 1.51 to 1.6 Ga for Fe-ores. Radiogenic 207Pb/ 206Pb age estimates for host rocks and ores are broadly coeval: ~1.50 Ga for rhyolitic host rocks, ~1.48 Ga for REE-rich breccias, ~1.43 Ga for Fe-ores these estimates are similar to zircon U-Pb ages determined for the host rocks and mineralizing events (ca. ![]() REE-rich breccias and iron oxide-apatite (IOA) ores at Pea Ridge are hosted in a volcanic sequence dominated by felsic tuffs with minor mafic-intermediate composition rocks. Nd and Pb isotope data were obtained on the Pea Ridge Fe-oxide-apatite-rare earth element (REE) deposit and host rocks in order to characterize their petrologic setting, better understand the regional geologic framework, and advance exploration techniques. ![]()
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