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9 datasets for “1830”

  1. data.gov.au

    Timing of regional tectonism and Au-mineralisation in the Tanami Block: 40Ar/39Ar geochronological constraints

    Geoscience Australia DataUpdated 16 Oct 2025

    … Ma, in contrast to previous estimates of ~1845 - 1830 Ma. However, detrital and magmatic zircons can provide no …

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  2. data.gov.au

    South Brooman State Forest, NSW. VAST-2: Tracking the Transformation of Australia's Vegetated Landscapes

    Terrestrial Ecosystem Research Network's Data DiscoveryUpdated 25 Jun 2026

    … chronology of changes in land use and management: 1830: Unmodified 1880: Area picked over for high quality sawlogs …

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  3. data.gov.au

    Talaheni Horse Paddock, Murrambatman, NSW. VAST-2: Tracking the Transformation of Australia's Vegetated Landscapes

    Terrestrial Ecosystem Research Network's Data DiscoveryUpdated 4 Mar 2026

    … chronology of changes in land use and management: 1830: Grazing of native vegetation - shepherds 1900-1961: Fencing and …

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  4. data.gov.au

    Organ Pipes National Park, Volcanic Plains Bioregion, VIC. VAST-2: Tracking the Transformation of Australia's Vegetated Landscapes

    Terrestrial Ecosystem Research Network's Data DiscoveryUpdated 4 Mar 2026

    … chronology of changes in land use and management: 1830: Indigenous people manage the area 1835: Sheep grazing commenced …

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  5. Open Government Canada

    The Early Tertiary Sifton Range volcanic complex, southwestern Yukon

    Government of Yukon | Gouvernement du YukonUpdated 26 Aug 2026

    … the presence of a calc-silicate bed at an elevation of 1830 m within the upper volcanic stratigraphy.

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  6. data.gov.au

    Belconnen Naval Transmitter Station, ACT. VAST-2: Tracking the Transformation of Australia's Vegetated Landscapes

    Terrestrial Ecosystem Research Network's Data DiscoveryUpdated 4 Mar 2026

    … Up to late 1820s the area was managed by indigenous Ngunnawal people 1830s: Area first grazed by sheep …

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  7. data.gov.ie

    Ancient and Long-established Woodland Inventory 2010

    Department of Housing, Local Government and HeritageUpdated 13 Nov 2026

    … established woodlands (LEW) have been continuously wooded since 1830. There are two sub‐categories, LEW (I) stands for …

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  8. data.gov.ie

    Survey of Annex I Alluvial woodland in Lough Ree cSAC 2019

    Department of Housing, Local Government and HeritageUpdated 13 Nov 2026

    … established woodlands (LEW) have been continuously wooded since 1830. There are two sub‐categories, LEW (I) stands for …

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  9. data.gov.au

    Geology and mineral deposits of the Cullen mineral field, Northern Territory.

    Geoscience Australia DataUpdated 16 Oct 2025

    … orogenic granitoids of the Cullen Batholith emplaced between 1830 and 1780 Ma. The Batholith contains granodiorite, several varieties …

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“1830” datasets · Open Data Finder