Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Hf–W chronology of the accretion and early evolution of asteroids and terrestrial planets
2009406 citationsT. Kleine, Klaus Mezger et al.Geochimica et Cosmochimica Actaprofile →
Citations per year, relative to A. N. Halliday A. N. Halliday (= 1×)
peers
G. A. McKay
Countries citing papers authored by A. N. Halliday
Since
Specialization
Citations
This map shows the geographic impact of A. N. Halliday's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by A. N. Halliday with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. N. Halliday more than expected).
This network shows the impact of papers produced by A. N. Halliday. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by A. N. Halliday. The network helps show where A. N. Halliday may publish in the future.
Co-authorship network of co-authors of A. N. Halliday
This figure shows the co-authorship network connecting the top 25 collaborators of A. N. Halliday.
A scholar is included among the top collaborators of A. N. Halliday based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with A. N. Halliday. A. N. Halliday is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Armytage, R. M. G., R. Bastian Georg, Helen M. Williams, & A. N. Halliday. (2010). Terrestrial Silicon Isotope Composition of Lunar Rocks. LPI. 1746.1 indexed citations
4.
Nielsen, Sune G., Julie Prytulak, & A. N. Halliday. (2009). Vanadium Isotope Ratios in Meteorites: A New Tool to Investigate Planetary and Nebular Processes. Lunar and Planetary Science Conference. 1549.2 indexed citations
5.
Schönbächler, Maria, Mark Rehkämper, Helen M. Williams, & A. N. Halliday. (2009). The cadmium isotope composition of the Earth. Oxford University Research Archive (ORA) (University of Oxford). 73.1 indexed citations
6.
Schönbächler, Maria, et al.. (2008). The Cadmium Isotope Composition of Chondrites and Eucrites. Meteoritics and Planetary Science Supplement. 43. 5268.2 indexed citations
7.
Quitté, G., et al.. (2006). Correlated Excesses of 60Ni and 62Ni in Refractory Inclusions. Oxford University Research Archive (ORA) (University of Oxford). 41. 5229.1 indexed citations
8.
Quitté, G., et al.. (2006). Search for 60Fe in Chondrules from Allende and Tieschitz. 37th Annual Lunar and Planetary Science Conference. 1856.4 indexed citations
9.
Kleine, T., A. N. Halliday, H. Palme, Klaus Mezger, & A. Markowski. (2006). Hf-W Chronometry of the Accretion and Thermal Metamorphism of Ordinary Chondrite Parent Bodies. 37th Annual Lunar and Planetary Science Conference. 1884.1 indexed citations
10.
Fehr, Manuela A., Mark Rehkämper, D. Porcelli, & A. N. Halliday. (2003). Homogeneity of Tellurium Isotopes in Chondrites, Leachates of Allende and Canyon Diablo. Lunar and Planetary Science Conference. 1655.1 indexed citations
11.
Halliday, A. N., et al.. (2003). 182Hf-182W Chronometry and an Early Differentiation in the Parent Body of Ureilites. 36th Annual Lunar and Planetary Science Conference. 1179.3 indexed citations
12.
Gunten, Urs von, D. Porcelli, A. N. Halliday, & Nadya Teutsch. (2002). Iron isotope fractionation in groundwater. Geochimica et Cosmochimica Acta. 66.2 indexed citations
13.
Porcelli, Don, et al.. (2002). The Concentration of Hafnium in Seawater: a Comparison Between the Arctic Ocean and the Northwestern Pacific. AGU Fall Meeting Abstracts. 2002.1 indexed citations
14.
Halliday, A. N., et al.. (2000). Lu-Hf Systematics and the Early Evolution of the Moon. Lunar and Planetary Science Conference. 1288.3 indexed citations
15.
Leya, I., R. Wieler, & A. N. Halliday. (1999). Does the Cosmogenic Production Influence the Hafnium-Tungsten System in Lunar Surface Material?. M&PSA. 34.1 indexed citations
16.
Piotrowski, Alexander M., et al.. (1999). A Hafnium-Isotopic Composition Record of the Central Indian Ocean from Ferromanganese Crusts. 7330.
17.
Snyder, G. A., L. E. Borg, L. A. Taylor, L. E. Nyquist, & A. N. Halliday. (1998). Volcanism in the Hadley-Apennine Region of the Moon: Geochronology, Nd-Sr Isotopic Systematics, and Depths of Melting. Lunar and Planetary Science Conference. 1141.2 indexed citations
18.
Snyder, G. A., Chris Hall, L. A. Taylor, & A. N. Halliday. (1995). 40Ar/39Ar Ages of Apollo 11 Group D Basalts: Evidence of High-Ti Volcanism in the Nectaris Basin and a Probable 2.0 GA Age for Crater Theophilus?. Lunar and Planetary Science Conference. 26. 1329.1 indexed citations
19.
Snyder, G. A., et al.. (1992). Isotopic Constraints on the Lunar Upper Mantle: Evidence from High-Ti Basalts. LPI. 23. 1319.1 indexed citations
20.
Paces, James B., et al.. (1990). Resolution of Ages and Sr-Nd Isotopic Characteristics in Apollo 17 High-Ti Basalts. Lunar and Planetary Science Conference. 21. 924.3 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.