Angela Halfpenny
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View article: Identification and Characterization of Gold Mineralization in a Fault Controlled Breccia
Identification and Characterization of Gold Mineralization in a Fault Controlled Breccia Open
Journal Article Identification and Characterization of Gold Mineralization in a Fault Controlled Breccia Get access Timothy Miller, Timothy Miller Department of Geological Sciences, Central Washington University, Ellensburg, WA, USA Search…
View article: IODP Expedition 305, Hole U1309D - Well Logging Data
IODP Expedition 305, Hole U1309D - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: IODP Expedition 305, Hole U1309D - Well Logging Data
IODP Expedition 305, Hole U1309D - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: Can the Source Location of a Coloured Quartz Gemstone Be Determined from Non-Destructive Chemical Analysis?
Can the Source Location of a Coloured Quartz Gemstone Be Determined from Non-Destructive Chemical Analysis? Open
Coloured varieties of quartz are extremely common and several are classed as semi-precious gemstones.For a long time varieties of quartz have been used to make jewellery, carvings and other household objects.With the advent of new non-dest…
View article: The Benefits of Consistently Orientated Samples for Coincident Data Collection
The Benefits of Consistently Orientated Samples for Coincident Data Collection Open
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View article: Textural changes of graphitic carbon by tectonic and hydrothermal processes in an active plate boundary fault zone, Alpine Fault, New Zealand
Textural changes of graphitic carbon by tectonic and hydrothermal processes in an active plate boundary fault zone, Alpine Fault, New Zealand Open
Graphitization in fault zones is associated both with fault weakening and orogenic gold mineralization. We examine processes of graphitic carbon emplacement and deformation in the active Alpine Fault Zone, New Zealand by analysing samples …
View article: Bedrock geology of DFDP-2B, central Alpine Fault, New Zealand
Bedrock geology of DFDP-2B, central Alpine Fault, New Zealand Open
During the second phase of the Alpine Fault, Deep Fault Drilling Project (DFDP) in the Whataroa River, South Westland, New Zealand, bedrock was encountered in the DFDP-2B borehole from 238.5–893.2 m Measured Depth (MD). Continuous sampling…
View article: Bedrock geology of DFDP-2B, central Alpine Fault, New Zealand
Bedrock geology of DFDP-2B, central Alpine Fault, New Zealand Open
During the second phase of the Alpine Fault, Deep Fault Drilling Project (DFDP) in the Whataroa River, South Westland, New Zealand, bedrock was encountered in the DFDP-2B borehole from 238.5–893.2 m Measured Depth (MD). Continuous sampling…
View article: Supplementary Data to: “Bedrock Geology of DFDP-2B, Central Alpine Fault, New Zealand"
Supplementary Data to: “Bedrock Geology of DFDP-2B, Central Alpine Fault, New Zealand" Open
These data are supplementary material to “Bedrock Geology of DFDP-2B, Central Alpine Fault, New Zealand” (Toy et al., 2017, http://doi.org/10.1080/00288306.2017.1375533). The data tables SF3 and SF4 are provided as well as Excel as well as…
View article: Actively forming Kuroko-type VMS mineralisation at Iheya North, Okinawa Trough, Japan: New geochemical, petrographic and δ<sup>34</sup>S isotope results
Actively forming Kuroko-type VMS mineralisation at Iheya North, Okinawa Trough, Japan: New geochemical, petrographic and δ<sup>34</sup>S isotope results Open
"Actively forming Kuroko-type VMS mineralisation at Iheya North, Okinawa Trough, Japan: New geochemical, petrographic and δ34S isotope results." Applied Earth Science, 125(2), p. 99
View article: The golden ark: arsenopyrite crystal plasticity and the retention of gold through high strain and metamorphism
The golden ark: arsenopyrite crystal plasticity and the retention of gold through high strain and metamorphism Open
Quantitative electron backscatter diffraction analysis and ion microprobe imaging of gold‐rich arsenopyrites provide the first insights into the crystal plasticity and element mobility behaviour of arsenopyrites through metamorphism (340°–…
View article: Characterization of Mason Gully (H5): The second recovered fall from the Desert Fireball Network
Characterization of Mason Gully (H5): The second recovered fall from the Desert Fireball Network Open
Mason Gully, the second meteorite recovered using the Desert Fireball Network ( DFN ), is characterized using petrography, mineralogy, oxygen isotopes, bulk chemistry, and physical properties. Geochemical data are consistent with its class…
View article: Gold remobilisation and formation of high grade ore shoots driven by dissolution-reprecipitation replacement and Ni substitution into auriferous arsenopyrite
Gold remobilisation and formation of high grade ore shoots driven by dissolution-reprecipitation replacement and Ni substitution into auriferous arsenopyrite Open
Both gold-rich sulphides and ultra-high grade native gold oreshoots are common but poorly understood phenomenon in orogenic-type mineral systems, partly because fluids in these systems are considered to have relatively low gold solubilitie…