Kurt Rademaker

Kurt Rademaker
Michigan State University | MSU · Department of Anthropology

Ph.D. Quaternary Archaeology

About

57
Publications
26,125
Reads
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1,527
Citations
Citations since 2016
36 Research Items
1095 Citations
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
Introduction
Kurt Rademaker works at the Department of Anthropology at Michigan State University. He is an interdisciplinary archaeologist interested in human-environment dynamics, hunter-gatherer colonization of South America, adaptations in extreme environments, and foundations of complex societies. https://www.paleoandes.com/
Additional affiliations
October 2014 - January 2016
University of Tuebingen
Position
  • PostDoc Position
January 2014 - October 2014
University of Maine
Position
  • Research Assistant

Publications

Publications (57)
Article
Full-text available
Study of human adaptation to extreme environments is important for understanding our cultural and genetic capacity for survival. The Pucuncho Basin in the southern Peruvian Andes contains the highest-altitude Pleistocene archaeological sites yet identified in the world, about 900 meters above confidently dated contemporary sites. The Pucuncho works...
Article
Full-text available
Archaeologists working in Mexico recently claimed evidence for pre-Last Glacial Maximum human occupation in the Americas, based on lithic items excavated from Chiquihuite Cave, Zacatecas. Although they provide extensive array of ancillary studies of the cave's chronostratigraphic and paleoenvironmental record, the data they present do not support t...
Article
Full-text available
We report results from geoarchaeological investigations at Cuncaicha rock shelter (4480 m above sea level) in the high Andes of southern Peru. Using field observations, geomorphological, micromorphological, micro-Fourier transform infrared spectroscopy, Bayesian modeling of radiocarbon ages, and archaeological data, we analyzed the entire stratigra...
Article
The Alca obsidian source in southern Peru is one of the largest and most geochemically complex sources of volcanic glass in South America. Hunter-gatherers first discovered and used Alca obsidian for stone tools at the end of the Pleistocene. Alca later became one of the three most economically important and widely distributed sources of obsidian i...
Article
Oxygen isotopes are commonly applied to study archaeological human and animal mobility among the vertical ecological zones of the Central Andes in South America. Such research assumes that oxygen and hydrogen isotopes in meteoric waters demonstrate an inverse relationship with elevation. However, because the primary source of precipitation in the C...
Article
This article reports the identification of the Sayrosa Source, a minor geologic source of volcanic glass referred to Rare Type-3 obsidian in the 1977 pilot study by Burger and Asaro. Located only 25 km northeast of the major Alca-1 deposit, this source was exploited in prehispanic times despite the relatively small size of its nodules. Occasional f...
Article
Full-text available
Archaeologists working in Mexico recently claimed evidence for pre-Last Glacial Maximum human occupation in the Americas, based on lithic items excavated from Chiquihuite Cave, Zacatecas. Although they provide extensive array of ancillary studies of the cave’s chronostratigraphic and paleoenvironmental record, the data they present do not support t...
Article
Full-text available
Hepatitis B virus (HBV) has been infecting humans for millennia and remains a global health problem, but its past diversity and dispersal routes are largely unknown. We generated HBV genomic data from 137 Eurasians and Native Americans dated between ~10,500 and ~400 years ago. We date the most recent common ancestor of all HBV lineages to between ~...
Article
Full-text available
Objectives Cuncaicha, a rockshelter site in the southern Peruvian Andes, has yielded archaeological evidence for human occupation at high elevation (4,480 masl) during the Terminal Pleistocene (12,500–11,200 cal BP), Early Holocene (9,500–9,000 cal BP), and later periods. One of the excavated human burials (Feature 15‐06), corresponding to a middle...
Article
Full-text available
There are many unanswered questions about the population history of the Central and South Central Andes, particularly regarding the impact of large-scale societies, such as the Moche, Wari, Tiwanaku, and Inca. We assembled genome-wide data on 89 individuals dating from ∼9,000-500 years ago (BP), with a particular focus on the period of the rise and...
Article
Full-text available
El objetivo del presente trabajo es analizar la variación craneométrica en una muestra de individuos del Holoceno temprano/medio al tardío de Perú. Para esto, se registraron 8 medidas lineales en el esqueleto facial y bóveda craneana de 301 individuos procedentes de 19 sitios arqueológicos, los cuales se encuentran ubicados en 4 biomas. Se exploró...
Article
Full-text available
The aim of this paper is to evaluate the craniometric affinities of the only Cuncaicha cranial specimen with other early, middle, and late Holocene South American samples. To do so, the skull was first reconstructed by using computer-aided techniques applied to several μ-CT-scanned fragments. Linear measurements were calculated in the facial skelet...
Article
Full-text available
Constraining the age of young lavas, which generally fall outside the effective range of traditional geochronology methods, remains a key challenge in volcanology, limiting the development of high-resolution eruption chronologies. We present an in situ cosmogenic ³He and ³⁶Cl surface-exposure chronology, alongside new minimum-limiting ¹⁴C ages, doc...
Poster
Full-text available
Ice sheets are both a clear physical representation of climate – fluctuating in response to temperature and precipitation – and a key contributor to climate variability, via feedbacks including albedo and meltwater input. Deciphering the scales of these respective roles from the geologic record of glaciation, however, requires glacial chronologies...
Chapter
Full-text available
We report new accelerator mass spectrometry (AMS) ages on faunal and human remains recovered from Cuncaicha shelter (4480 m elevation) in the high southern Peruvian Andes. Using a large number of precise radiometric ages available for the Cuncaicha sequence, we employ Bayesian modeling to determine how human burials relate to discrete episodes of s...
Chapter
Full-text available
The settlement of the Peruvian high Andes proved to be extremely challenging for Pleistocene hunter-gatherers due to geographical isolation and the harsh environmental conditions of the region. In this chapter, we present a report of the human skeletal material recovered from the Cuncaicha rockshelter, a Peruvian high-altitude site. The excavation...
Data
Table S2. Affinity of Early South Americans to North Americans, Related to Table S4 Representative f4-statistics on 1240K dataset of the form f4(Mbuti, Anzick-1; Early South American, Brazil_LapaDoSanto_9600BP or Late Central Andes) or f4(Mbuti, Canada_Lucier_4800BP-500BP; Brazil_LapaDoSanto_9600BP or Brazil_Laranjal_6700BP, Late or Modern Peruvia...
Data
Table S3. Data Description, Ancient DNA Workflow, mtDNA, Radiocarbon Dates, Related to Figure 1
Data
Table S4. f4- and f3-Statistics, Related to Figures 1, 4, 5, S5D–S5F, and S6A–S6D and Table S2
Data
Table S1. Relatedness of Ancient to Present-Day People, Related to Figures 2, S1, and S2 f4-statistics on the Illumina dataset of the form f4(Mbuti, Test; South American 1, South American 2) where “Test” is a newly reported ancient group, “South American 1” is the population with highest affinity to Test in outgroup f3-statistics (excluding Chorot...
Article
Full-text available
We report genome-wide ancient DNA from 49 individuals forming four parallel time transects in Belize, Brazil, the Central Andes, and the Southern Cone, each dating to at least ∼9,000 years ago. The common ancestral population radiated rapidly from just one of the two early branches that contributed to Native Americans today. We document two previou...
Article
An objective of terrestrial in situ cosmogenic nuclide research is to obtain precise and accurate production-rate estimates on the basis of geological calibration sites from a diverse range of latitudes and altitudes. However, a challenge has been to establish production rates on the basis of landforms for which independent ages have been determine...
Conference Paper
The British Isles contain a rich glacial-geologic record of cryospheric behaviour in the NE North Atlantic basin, with enormous potential for establishing the timing, causes, and mechanisms of key climate events. We present a cosmogenic 10Be surface-exposure chronology from northern Scotland that, together with glacial-geomorphic mapping, reconstru...
Article
Results from the recent excavations at the Cuncaicha rock shelter (4480mabove sea level) suggest a successful colonization of the Andean highlands by groups of foragers during the Terminal Pleistocene and Early Holocene. The discovery of Early and Late Holocene human remains buried in the site brings new opportunities to assess mobility and occupat...
Conference Paper
Deciphering the pattern of climate behaviour during the last glacial–interglacial transition is key to understanding the mechanisms responsible for terminations. This is particularly true for the tropics, which, as the primary source of both heat and water vapour, exert a profound influence on global climate. We present a glacier record from the SE...
Data
Full-text available
The Younger Dryas Stadial (YDS; ∼12,900–11,600 y ago) in the Northern Hemisphere is classically defined by abrupt cooling and renewed glaciation during the last glacial–interglacial transition. Although this event involved a global reorganization of atmo-spheric and oceanic circulation [Denton GH, Alley RB, Comer GC, Broecker WS (2005) Quat Sci Rev...
Article
Significance Resolving the full manifestation of past abrupt climate change is key to understanding the processes driving and propagating these events. As a principal component of global heat transport, the North Atlantic Ocean also is susceptible to rapid disruptions of meridional overturning circulation and thus widely invoked as a cause of abrup...
Article
Full-text available
A synthetic understanding of the timing and migration routes involved in the initial human settlement of the Americas remains elusive. Although site-level investigations have provided a wealth of information on adaptations to specific ecological zones, fundamental information is lacking on landscape-scale patterns of mobility, settlement, and inter...
Article
Full-text available
We synthesize the available radiocarbon data from Peruvian archaeological sites for the Terminal Pleistocene through Middle Holocene. Compilation and calibration of this dataset provide a new opportunity to examine trends in archaeological site distributions and occupation intensity. We compare the spatial and temporal patterning of radiocarbon dat...
Article
Full-text available
We report results from comprehensive mapping and multi-technique geochemical characterization of obsidian from the Alca source in the Peruvian Andes (15.3°S, 72.7°W), aimed at understanding patterns of extraction and trade in one of the world’s centers of complex civilization. Alca obsidian was among the most economically important and widely distr...
Thesis
This interdisciplinary thesis presents results from field and laboratory investigations of archaeological sites in a ~150-km coast-highland corridor in southern Peru, aimed at better understanding the Terminal Pleistocene biogeographic expansion of humans into the high-altitude Andes and possible early coast-highland links. I integrated a number of...
Article
Deposits preserved on peaks in the southern Peruvian Andes are evidence for past glacial fluctuations and, therefore, serve as a record of both the timing and magnitude of past climate change. Moraines corresponding to the last major expansion of ice on Nevado Coropuna date to 20-25 ka, during the last glacial maximum. We reconstructed the snowline...
Article
The occurrence of pronounced climate reversals during the last glacial termination has long been recognised in palaeoclimate records from both hemispheres and from high to low latitudes. Accurate constraint of both the timing and magnitude of events, such as the Younger Dryas and Antarctic Cold Reversal, is vital in order to test different hypothes...
Article
Full-text available
In this article we review what is currently known about the early occupation of the southern Peruvian coast and highlands. We focus our review on the Terminal Pleistocene sites of Quebrada Jaguay and Quebrada Tacahuay (coast) and Pucuncho (highlands), and we compare them with the few other sites known from this period. We cover chronology, settleme...
Article
Los Morteros (8 degrees 39'54 '' S, 78 degrees 42'00 '' W) is located in coastal, northern Peru, one of the six original centers of world civilization. The site consists of a large, sand-covered, isolated prominence situated on a Mid-Holocene shoreline, similar to 5 km from the present coast. Preceramic archaeological deposits (4040 +/- 75 to 4656...
Article
Whether or not tropical climate fluctuated in synchrony with global events during the Late Pleistocene is a key problem in climate research. However, the timing of past climate changes in the tropics remains controversial, with a number of recent studies reporting that tropical ice age climate is out of phase with global events. Here, we present ge...
Article
Chili peppers (Capsicum spp.) are widely cultivated food plants that arose in the Americas and are now incorporated into cuisines worldwide. Here, we report a genus-specific starch morphotype that provides a means to identify chili peppers from archaeological contexts and trace both their domestication and dispersal. These starch microfossils have...
Article
Over the past decade, increasing attention to the recovery and identification of plant microfossil remains from archaeological sites located in lowland South America has significantly increased knowledge of pre-Columbian plant domestication and crop plant dispersals in tropical forests and other regions. Along the Andean mountain chain, however, th...
Thesis
This M.S. thesis presents results from field and laboratory investigations of the Alca highland obsidian (volcanic glass) source and Wayñuna, a Preceramic highland archaeological site previously identified close to a geological deposit of Alca obsidian in southern Peru's Cotahuasi Valley. Obsidian artifacts found within Terminal Pleistocene (13,000...

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Projects

Projects (3)
Project
To help understand early foraging groups and their adaptations
Project
The project applies cutting-edge techniques to re-investigate a series of classic cave sites in the Puna of Junín of central Peru, originally excavated in the 1970s and early 1980s. A Faculty Initiatives Fund from the Michigan State University College of Social Science supported pilot field work this June-July 2019. The project is building high-resolution chronologies for two of the cave sequences and using geoarchaeological analysis to study site formation processes.
Project
* Resolve chronology at early archaeological sites at the Pacific Coast and Andes of western South America * Determine functional relationships among linked early sites. * Better understand the evolution of human adaptations in the high Andes.