<div>The North-East Beagle Gulf and Clarence Strait bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Offshore Guardian during the period 1 May 2021 – 13 Jul 2021. This was a contracted survey conducted for the Australian Hydrographic Office by Guardian Geomatics as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in North-East Beagle Gulf and Clarence Strait, Northern Territory. Bathymetry data was acquired using a Kongsberg EM2040 07 MK II, and processed using Caris Hips & Sips processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

<div>The Booby Island to D'Arcole Islands, Bonaparte Archipelago bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Offshore Solution and MV Special Order during the period 15 September 2022 – 26 November 2022. This was a contracted survey conducted for the Australian Hydrographic Office by Guardian Geomatics as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Booby Island to D'Arcole Islands, Bonaparte Archipelago, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040P and a Kongsberg EM2040-07, and processed using CARIS HIPS & SIPS processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

<div>The Eclipse Shoals to Lombadina Point, Kimberly Region bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Outer Limit during the period 12 September 2022 – 3 December 2022. This was a contracted survey conducted for the Australian Hydrographic Office by Ocean Infinity as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Eclipse Shoals to Lombadina Point, Kimberley region, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040P MKII, and processed using QPS Qimera processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

<div>The Great North East Channel (South-West), Torres Strait bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Sea Ranger and the SMB Independence during the period 26 Jan 2022 – 13 Apr 2022. This was a contracted survey conducted for the Australian Hydrographic Office by EGS Survey Pty. Ltd. as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Torres Strait, Queensland. Bathymetry data was acquired using a Kongsberg EM2040C and a Kongsberg EM2040P, and processed using QPS Qimera processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

<div>This Record presents 16 new Sensitive High Resolution Ion Micro Probe (SHRIMP) U-Pb zircon results obtained under the auspices of the Geological Survey of Queensland-Geoscience Australia (GSQ-GA) National Collaborative Framework (NCF) geochronology project in 2023-2024. These data were collected in support of the Peralkaline Magmatic Systems Project and the Northeast Queensland Deposits Project led by the GSQ. Cenozoic felsic igneous rocks in Queensland occur in scattered localities between Mackay and the southern Border Ranges and as far west as areas around Emerald. These rocks are primarily associated with eroded central volcanoes and exhibit well-defined age progression resulting from movement of the Australian plate over a mantle plume during the Cenozoic (see Cohen et al., 2013a, b). The location and existing K-Ar and Ar-Ar age data for the central volcanoes show a strong younging to the south, extending from Cape Hillsborough (ca. 33 Ma) through Nebo, Peak Range and Springsure to Buckland (ca. 27 Ma), forming the northernmost part of the Cosgrove Hotspot Track (Davies et al., 2015). Existing geochronology for units along this track is dominated by K-Ar and Ar-Ar data with only a few units having reconnaissance-quality U-Pb zircon ages. Our study aimed to produce new, high-quality emplacement ages to compare with existing data, constrain the ages of undated units and test correlations, and to identify any inheritance that could help to understand their origin.</div><div><br></div>

<div>The Torres Strait Under Keel Clearance Management Area bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Sea Ranger and SMB White Shark during the period 1 Dec 2021 – 24 Jan 2022. This was a contracted survey conducted for the Australian Hydrographic Office by EGS Survey Pty. Ltd. as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Torres Strait, Queensland. Bathymetry data was acquired using a Kongsberg EM2040D and a Kongsberg EM 2040C, and processed using QPS Qimera processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>

<div>The Lacepede Channel bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Pacific Conquest and USV Blue Shadow - 901 during the period 19 May 2021 – 22 Sep 2021. This was a contracted survey conducted for the Australian Hydrographic Office by Fugro as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Lacepede Channel, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040 Mk II, and processed using Caris Hips & Sips processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.</div><div>This dataset is not to be used for navigational purposes.</div>