Dr. Mark Sier

Vening Meineszgebouw A
Princetonlaan 8a
3584 CB Utrecht

Dr. Mark Sier

Onderzoeker
Stratigraphy & paleontology
m.j.sier@uu.nl

Publicaties

2025

Wetenschappelijke publicaties

Sier, MJ., Spiering, BR., Dekkers, MJ., & Hilgen, FJ. (2025). Magnetic mineralogy of the Baringo core (HSPDP-BTB13-1A, Kenya) shows astronomical forcing with implications for retrieving meaningful paleointensity [version 1; peer review: 1 approved]. Open Research Europe, 5(177). [DOI]
Braun, D. R., Palcu Rolier, D. V., Advokaat, E. L., Archer, W., Baraki, N. G., Biernat, M. D., Beaudoin, E., Behrensmeyer, A. K., Bobe, R., Elmes, K., Forrest, F., Hammond, A. S., Jovane, L., Kinyanjui, R. N., de Martini, A. P., Mason, P. R. D., McGrosky, A., Munga, J., Ndiema, E. K., ... Carvalho, S. (2025). Early Oldowan technology thrived during Pliocene environmental change in the Turkana Basin, Kenya. Nature Communications, 16(1), Article 9401. Advance online publication. [DOI] [Portal]
Spiering, B. R., Sier, M. J., & Hilgen, F. J. (2026). Astronomical climate forcing and tuning of the Baringo core (HSPDP-BTB13-1A), Kenya. Palaeogeography, Palaeoclimatology, Palaeoecology, 681, Article 113377. Advance online publication. [DOI] [Portal]
Key, A., Clark, J., Lauer, T., Bates, J., Sier, M.-J., Nichols, C., Martín-Ramos, C., Cebeiro, A., Williams, E., Kim, S., Stileman, F., Mika, A., Pope, M., Bridgland, D., Redhouse, D., Leonardi, M., Smith, G. M., & Proffitt, T. (2025). Hominin glacial-stage occupation 712,000 to 424,000 years ago at Fordwich Pit, Old Park (Canterbury, UK). Nature Ecology & Evolution, 9(10), 1781-1790. [DOI] [Portal]

2024

Wetenschappelijke publicaties

Berke, M. A., Peppe, D. J., & the LVDP team (2024). ICDP workshop on the Lake Victoria Drilling Project (LVDP): scientific drilling of the world's largest tropical lake. Scientific Drilling, 33(1), 21-31. [DOI]

2023

Wetenschappelijke publicaties

Bobe, R., Aldeias, V., Alemseged, Z., Anemone, R. L., Archer, W., Aumaître, G., Bamford, M. K., Biro, D., Bourlès, D. L., Doyle Boyd, M., Braun, D. R., Capelli, C., d'Oliveira Coelho, J., Habermann, J. M., Head, J. J., Keddadouche, K., Kupczik, K., Lebatard, A. E., Lüdecke, T., ... Carvalho, S. (2023). The first Miocene fossils from coastal woodlands in the southern East African Rift. iScience, 26(9), 1-29. Article 107644. [DOI] [Repository]
Cherin, M., Basilici, G., Duval, M., Shao, Q., Sier, M. J., Parés, J. M., Gliozzi, E., Mazzini, I., Magri, D., Di Rita, F., Iurino, D. A., Azzarà, B., Margaritelli, G., & Pazzaglia, F. (2023). The dawn of the Late Villafranchian: Paleoenvironment and age of the Pantalla paleontological site (Italy; Early Pleistocene). Quaternary Science Reviews, 316, Article 108279. [DOI]
Villaseñor, A., Uno, K. T., Kinyanjui, R. N., Behrensmeyer, A. K., Bobe, R., Advokaat, E. L., Bamford, M., Carvalho, S. C., Hammond, A. S., Palcu, D. V., Sier, M. J., Ward, C. V., & Braun, D. R. (2023). Pliocene hominins from East Turkana were associated with mesic environments in a semiarid basin. Journal of Human Evolution, 180, 1-19. Article 103385. [DOI] [Repository]

2022

Wetenschappelijke publicaties

Deocampo, D. M., Owen, R. B., Lowenstein, T. K., Renaut, R. W., Rabideaux, N. M., Billingsley, A., Cohen, A., Deino, A. L., Sier, M. J., Luo, S., Shen, C. C., Gebregiorgis, D., Campisano, C., & Mbuthia, A. (2022). Orbital control of Pleistocene euxinia in Lake Magadi, Kenya. Geology, 50(1), 42-47. [DOI] [Repository]

2021

Wetenschappelijke publicaties

Sier, M. J., Dupont-Nivet, G., Langereis, C., & Cohen, A. (2021, Mar 4). Magnetostratigraphy from the Hominin Sites Paleolakes Drilling Project (HSPDP) drill cores, low latitudes reorientation. [DOI]
Muiruri, V. M., Owen, R. B., de Cort, G., Renaut, R. W., Rabideaux, N. M., Lowenstein, T. K., Leet, K., Sier, M., Cohen, A., Deocampo, D., Campisano, C. J., Billingsley, A., & Mbuthia, A. (2021). Middle Pleistocene to recent diatoms and stratigraphy of the Magadi Basin, south Kenya Rift. Journal of Paleolimnology. [DOI]
Reidsma, F. H., Sifogeorgaki, I., Dinckal, A., Huisman, H., Sier, M. J., van Os, B., & Dusseldorp, G. L. (2021). Making the Invisible Stratigraphy Visible: A Grid-Based, Multi-Proxy Geoarchaeological Study of Umhlatuzana Rockshelter, South Africa. Frontiers in Earth Science, 9, Article 664105. [DOI]
Muiruri, V. M., Owen, R. B., de Cort, G., Renaut, R. W., Rabideaux, N. M., Lowenstein, T. K., Leet, K., Sier, M., Cohen, A., Deocampo, D., Campisano, C. J., Billingsley, A., & Mbuthia, A. (2021). Middle Pleistocene to recent diatoms and stratigraphy of the Magadi Basin, south Kenya Rift. Journal of Paleolimnology, 65(3), 315-333. [DOI]
Muiruri, V. M., Owen, R. B., Lowenstein, T. K., Renaut, R. W., Marchant, R., Rucina, S. M., Cohen, A., Deino, A. L., Sier, M. J., Luo, S., Leet, K., Campisano, C., Rabideaux, N. M., Deocampo, D., Shen, C. C., Mbuthia, A., Davis, B. C., Aldossari, W., & Wang, C. (2021). A million year vegetation history and palaeoenvironmental record from the Lake Magadi Basin, Kenya Rift Valley. Palaeogeography, Palaeoclimatology, Palaeoecology, 567, Article 110247. [DOI]
Deino, A. L., Sier, M. J., Garello, D. I., Keller, C. B., Kingston, J. D., Scott, J. J., Dupont-Nivet, G., & Cohen, A. S. (2021). Chronostratigraphy of the Baringo-Tugen Hills-Barsemoi (HSPDP-BTB13-1A) core – 40Ar/39Ar dating, magnetostratigraphy, tephrostratigraphy, sequence stratigraphy and Bayesian age modeling. Palaeogeography, Palaeoclimatology, Palaeoecology, 570, Article 109519. [DOI]
Sier, M. J., Dupont-Nivet, G., Langereis, C., Deino, A. L., Kingston, J. D., & Cohen, A. S. (2021). Magnetostratigraphy of the Hominin Sites and Paleolakes Drilling Project (HSPDP) Baringo-Tugen Hills-Barsemoi core (Kenya). Palaeogeography, Palaeoclimatology, Palaeoecology, 570, 1-12. Article 110190. [DOI] [Repository]

Vakpublicaties

Furche, A., Kilian, R., Cassar, J., Gibson, A., Campbell, J., Leisner, J., Martinez, D. G., Azzopardi, E. M., Simon, S., Sier, M., & Strlič, M. (2021, Feb 15). IPERION HS D7.2 Detailed engagement plan for new users' communities. [DOI]
Mazzeo, R., Campbell, J., Cassar, J., Furche, A., Gibson, A., Kilian, R., Leisner, J., Martinez, D. G., Azzopardi, E. M., Sier, M., Strlič, M., Striova, J., & Benassi, L. (2021, Feb 15). IPERION HS D7.1 Training Plan. [DOI]

2020

Wetenschappelijke publicaties

Alemseged, Z., Wynn, J. G., Geraads, D., Reed, D., Andrew Barr, W., Bobe, R., McPherron, S. P., Deino, A., Alene, M., J. Sier, M., Roman, D., & Mohan, J. (2020). Fossils from Mille-Logya, Afar, Ethiopia, elucidate the link between Pliocene environmental changes and Homo origins. Nature Communications, 11(1), Article 2480. [DOI]
Russell, J. M., Barker, P., Cohen, A., Ivory, S., Kimirei, I., Lane, C., Leng, M., Maganza, N., McGlue, M., Msaky, E., Noren, A., Boush, L. P., Salzburger, W., Scholz, C., Tiedemann, R., Nuru, S., & Lake Tanganyika Scientific Drilling Project (TSDP) Consortium (2020). ICDP workshop on the Lake Tanganyika Scientific Drilling Project: A late Miocene-present record of climate, rifting, and ecosystem evolution from the world's oldest tropical lake. Scientific Drilling, 27, 53-60. [DOI]
Parés, J. M., Campaña, I., Duval, M., Sier, M. J., Ortega, A. I., López, G. I., & Rosell, J. (2020). Comparing depositional modes of cave sediments using magnetic anisotropy. Journal of Archaeological Science, 123, Article 105241. [DOI]

2019

Wetenschappelijke publicaties

Bernhart Owen, R., Renaut, R. W., Muiruri, V. M., Rabideaux, N. M., Lowenstein, T. K., McNulty, E. P., Leet, K., Deocampo, D., Luo, S., Deino, A. L., Cohen, A., Sier, M. J., Campisano, C., Shen, C. C., Billingsley, A., Mbuthia, A., & Stockhecke, M. (2019). Quaternary history of the Lake Magadi Basin, southern Kenya Rift: Tectonic and climatic controls. Palaeogeography, Palaeoclimatology, Palaeoecology, 518, 97-118. [DOI]
Lewis, S. G., Ashton, N., Field, M. H., Hoare, P. G., Kamermans, H., Knul, M., Mücher, H. J., Parfitt, S. A., Roebroeks, W., & Sier, M. J. (2019). Human occupation of northern Europe in MIS 13: Happisburgh Site 1 (Norfolk, UK) and its European context. Quaternary Science Reviews, 211, 34-58. [DOI]

2018

Wetenschappelijke publicaties

Owen, R. B., Muiruri, V. M., Lowenstein, T. K., Renaut, R. W., Rabideaux, N., Luo, S., Deino, A. L., Sier, M. J., Dupont-Nivet, G., Mcnulty, E. P., Leet, K., Cohen, A., Campisano, C., Deocampo, D., Shen, C. C., Billingsley, A., & Mbuthia, A. (2018). Progressive aridification in East Africa over the last half million years and implications for human evolution. Proceedings of the National Academy of Sciences of the United States of America, 115(44), 11174-11179. [DOI]
Parés, J. M., Álvarez, C., Sier, M., Moreno, D., Duval, M., Woodhead, J. D., Ortega, A. I., Campaña, I., Rosell, J., Bermúdez de Castro, J. M., & Carbonell, E. (2018). Chronology of the cave interior sediments at Gran Dolina archaeological site, Atapuerca (Spain). Quaternary Science Reviews, 186, 1-16. [DOI] [Repository]

2017

Wetenschappelijke publicaties

Sier, M. J., Langereis, C. G., Dupont-Nivet, G., Feibel, C. S., Joordens, J. C. A., van der Lubbe, J. H. J. L., Beck, C. C., Olago, D., Cohen, A., & WTK Science Team Members (2017). The top of the Olduvai Subchron in a high-resolution magnetostratigraphy from the West Turkana core WTK13, hominin sites and Paleolakes Drilling Project (HSPDP). Quaternary Geochronology, 42, 117-129. [DOI] [Repository]

2016

Wetenschappelijke publicaties

Cohen, A., Campisano, C., Arrowsmith, R., Asrat, A., Behrensmeyer, A. K., Deino, A., Feibel, C., Hill, A., Johnson, R., Kingston, J., Lamb, H., Lowenstein, T., Noren, A., Olago, D., Owen, R. B., Potts, R., Reed, K., Renaut, R., Schäbitz, F., ... Zinaye, B. (2016). The Hominin Sites and Paleolakes Drilling Project: inferring the environmental context of human evolution from eastern African rift lake deposits. Scientific Drilling, 21, 1-16. [DOI] [Repository]

Overige resultaten

Cohen, K. M., Peeters, J., Sier, M. J., Hijma, M. P., & Busschers, F. S. (2016). Intercomparing the boundaries of the youngest two interglacials: Base MIS1 vs Base MIS5e, Base Holocene vs Base Last Interglacial, Base Middle Holocene vs Base Eemian. Paper presented at 35th IGC International Geological Congress, Cape Town, South Africa. https://www.americangeosciences.org/igc/15910 [Repository]

2015

Wetenschappelijke publicaties

Liu, W., Martinón-Torres, M., Cai, Y.-J., Xing, S., Tong, H.-W., Pei, S.-W., Sier, M. J., Wu, X.-H., Edwards, R. L., Cheng, H., Li, Y.-Y., Yang, X.-X., de Castro, J. M. B., & Wu, X.-J. (2015). The earliest unequivocally modern humans in southern China. Nature, 526, 696-699. [DOI] [Repository]
Sier, M. J., Peeters, J., Dekkers, M., Pares, J. M., Chang, L., Busschers, F. S., Cohen, K. M., Wallinga, J., Bunnik, F. P. M., & Roebroeks, W. (2015). The Blake Event recorded near the Eemian type locality - A diachronic onset of the Eemian in Europe. Quaternary Geochronology, 28, 12-28. [DOI] [Repository]
Sier, M. J., Parés, J. M., Antoine, P., Locht, J.-L., Dekkers, M. J., Limondin-Lozouet, N., & Roebroeks, W. (2015). Evidence for the Blake Event recorded at the Eemian archaeological site of Caours, France. Quaternary International, 357, 149-157. [DOI] [Repository]

2014

Wetenschappelijke publicaties

Pías-Peleteiro, J. M., Aldrey, J. M., Martinón-Torres, M., & Sier, M. J. (2014). Torvisco (gnidium Daphne L.): An ancient European timbó,El torvisco (Daphne gnidium L.): Un timbó ancestral Europeo. Revista de Neurologia.
Sier, M. J. (2014, Jan 21). Land-sea correlation of the Last Interglacial via the Blake palaeomagnetic Event: implications for Neandertal occupation history of northwestern Europe.
Pías-Peleteiro, J. M., Aldrey, J. M., Martinón-Torres, M., & Sier, M. J. (2014). El torvisco (Daphne gnidium L.): Un timbó ancestral Europeo. Revista de Neurología, 58(7), 335-336.
Bermúdez De Castro, J. M., Martinón-Torres, M., Sier, M. J., & Martín-Francés, L. (2014). On the variability of the dmanisi mandibles. PLoS One, 9(2), Article e88212. [DOI] [Repository]
Pías-Peleteiro, J. M., Aldrey, J. M., Martinón-Torres, M., & Sier, M. J. (2014). Flax-leaved daphne (Daphne gnidium L.): An ancient European timbó. Revista de Neurología, 58(7), 335-336.

Vakpublicaties

Sier, M. (2014). Een late start van het Eemien in Noordwest_Europa? Geo.brief, 2014(1), 13-15. http://www.kngmg.nl/publicaties/Geobrief-1-2014.pdf [Repository]

Populariserende publicaties

Sier, M., & Joordens, J. C. A. (2014). Boren naar onze bron (article by Mark Veldkamp). De Telegraaf. http://media.leidenuniv.nl/legacy/ta-01-02-2014-nl-1-4a-wetenschap---1.pdf

2013

Wetenschappelijke publicaties

Sier, M. J., & Dekkers, M. J. (2013). Magnetic property analysis as palaeoenvironmental proxy: a case study of the Last Interglacial Middle Palaeolithic site at Neumark-Nord 2 (Germany). In S. Gaudzinski-Windheuser, & W. Roebroeks (Eds.), Geochronology and Palaeoenvironmental reconstruction of Neumark-Nord, Saxony-Anhalt, Germany (pp. 117-130). (Veröff. Landesamtes für Denkmalpflege u. Archäeologie Sachsen-Anhalt; No. Band 69).
Joordens, J. C. A., Dupont-Nivet, G., Feibel, C. S., Spoor, F., Sier, M. J., van der Lubbe, J. H. J. L., Kellberg Nielsen, T., Knul, M. V., Davies, G. R., & Vonhof, H. B. (2013). Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya. Journal of Human Evolution, 65(6), 731-745. [DOI]

Overige resultaten

Sier, M. (2013). Laatste interglaciaal begon hier 5000 jaar later dan in Zuid-Europa (article by Walter Eijndhoven). Web publication/site, Scientias.nl. http://www.scientias.nl/laatste-interglaciaal-begon-hier-5000-jaar-later-dan-zuid-europa/94453

2012

Wetenschappelijke publicaties

Roebroeks, W., Sier, M. J., Kellberg Nielsen, T., De Loecker, D., Parés, J., Arps, C. E. S., & Mücher, H. J. (2012). Use of red ochre by early Neandertals. Proceedings of the National Academy of Sciences of the United States of America, 109(6), 1889-1894. [DOI]

Overige resultaten

Sier, M., Peeters, J., Dekkers, M. J., Busschers, F. S., Parés, J., Bunnik, F., & Roebroeks, W. (2012). A palaeomagnetic signal from the Last Interglacial. Poster session presented at ESHE Annual Meeting 2012, Bordeaux, France.
Sier, M., Peeters, J., Dekkers, M. J., Busschers, F. S., Parés, J., Bunnik, F. P. M., & Roebroeks, W. (2012). A palaeomagnetic signal from the Last Interglacial. Abstract from INQUA SEQS 2012 Meeting, Sassari, Sardinia, Italy.

2011

Wetenschappelijke publicaties

Sier, M. J., Roebroeks, W., Bakels, C. C., Dekkers, M. J., Brühl, E., De Loecker, D., Gaudzinsky-Windheuser, S., Hesse, N., Jagich, A., Kindler, L., Kuijper, W. J., Laurat, T., Mücher, H. J., Penkman, K. E. H., Richter, D., & van Hinsbergen, D. J. J. (2011). Direct terrestrial-marine correlation demonstrates surprisingly late onset of the last interglacial in central Europe. Quaternary Research, 75(1), 213-218.
Joordens, J. C. A., Vonhof, H. B., Feibel, C. S., Lourens, L. J., Dupont-Nivet, G., van der Lubbe, J. H. J. L., Sier, M. J., Davies, G. R., & Kroon, D. (2011). An astronomically-tuned climate framework for hominins in the Turkana Basin. Earth and Planetary Science Letters, 307(1-2), 1-8. [DOI]

Vakpublicaties

BV, S., Kremer, H., Sier, M. J., Koeman, S. M., Wagenmans, M. D., & Kuijl, E. E. A. V. D. (2011). Morgenzonstraat 1 te Groenlo. [DOI]
BV, S., Hagens, D., Sier, M., Rondags, E., & Liefferinge, N. V. (2011). Gravenweg-Rimburgerweg te Landgraaf. [DOI]

2008

Wetenschappelijke publicaties

Dupont-Nivet, G., Sier, M., Campisano, C. J., Arrowsmith, J. R., DiMaggio, E., Reed, K., Lockwood, C., Franke, C., & Hüsing, S. (2008). Magnetostratigraphy of the eastern Hadar Basin (Ledi-Geraru research area, Ethiopia) and implications for hominin paleoenvironments. Special Paper of the Geological Society of America, 446, 67-85. [DOI] [Portal]
Dupont-Nivet, G., Sier, M., Campisano, C. J., Arrowsmith, J. R., DiMaggio, E. N., Reed, K., Lockwood, C. A., Franke, C., & Hüsing, S. (2008). Magnetostratigraphy of the eastern Hadar Basin (Ledi-Geraru research area, Ethiopia), implications for hominin paleoenvironments. In J. Quade, & J. G. Wynn (Eds.), The Geology of Early Humans in the Horn of Africa (pp. 67-85-doi: 10.1130/2008.2446(03)). (Geological Society of America Special Papers; No. 446).