New Paper (AGU 10/14 - 10/19)

 Geochemistry, Geophysics, Geosystems

1. Role of Post-Collisional Magmatism in Continental Growth and Reworking Since the Late Archean - Dongjian Ouyang, Ross N. Mitchell, Peng Peng, Jinghui Guo, Qiuli Li
2. Geodynamic Significance of Intraplate Basaltic Magmatism from the Western Mediterranean Region - Chia-Yu Tien, Nicky White, Megan Holdt, John Maclennan, Benedict Conway-Jones

Geophysical Research Letters

1. Biomass Burning in Australia: No Evidence for Carbonyl Sulfide (OCS) Enhancement in Fire Plumes from In-Situ Measurements During SouthTRAC - S. Kessler, N. Emig, H.-C. Lachnitt, D. Kunkel, H. Bozem, V. Bense, P. Joppe, T. Kaluza, J.-U. Grooß, A. Zahn, H. Ziereis, M. Riese, P. Hoor
2. Ammonia Air-Sea Exchange in Southwest UK - S. Louw, T. G. Bell, E. M. S. Woodward, M. Yang
3. Coral Reef-Level Upwelling in an Internal Wave Hotspot Modulated by Mesoscale Dynamics - Alex S. J. Wyatt, Timothy B. King, I-Huan Lee, James J. Leichter

JGR Oceans

1. Local and Cross-Basin Driving Mechanisms for Marine Heatwaves in the Kuroshio Extension Region - Qian Cao, Yulong Yao, Fangyuan Teng, Changming Dong, Jing Ma
2. Gulf of Main Marine Heatwaves in Eddy-Resolving and Non-Eddy Resolving Simulations - Rudradutt Thaker, Elizabeth Maroon, Anna-Lena Deppenmeier, LuAnne Thompson

Paleoceanography and Paleoclimatology

1. Hydroclimate Variability in the Western Pacific Warm Pool Over the Last 15 kyr - Botond Lázár, Mahyar Mohtadi, Yu-Chen Yang, Jun Hu, Enno Schefuß, Zhimin Jian, Yusuke Yokoyama, John R. Southon, Stephan Steinke

Climate of the Past

1. A 204-year tree-ring reconstruction of dry-season precipitation for the Lugu Lake basin, southeastern Tibetan Plateau - Zhengyang Chang, Feng Chen, Heli Zhang, Shijie Wang, Mao Hu, Honghua Cao, Youping Chen, Yuxi Ding, Tiyuan Hou

Environmental and Engineering GeoScience

1. Case Study of Suspended Sediment Transport in Two Illinois Watersheds, Examining Effects of Area and Gradient – Oghenevwede Efobo, Laura Hanna, Weric W. Peterson 

International Short Course at Tohoku with ANU (9/6 - 9/13)

Last month we joined the annual International Short Trip Course to Tohoku with students from The Australian National University. On the first day, after the Welcome and Greetings from professors and the directors, we immersed ourselves in lectures across a spectrum of disciplines, from geohazards to philosophy, as well as lab tours at AORI. It was exciting to meet new people and make friends with each other.

On the second day, we departed from AORI to Tohoku, heading north along Japan's East Coast, starting our trip with the first visit to the TEPCO Decommissioning Archive Center. We were able to closely learn about the Fukushima nuclear accident. Following the visit, we went to explore the traces and deposits of tsunamis in a soil setting, great thanks to the professors from Tohoku University for their help.

On the third day, we visited the town of Otsuchi, which was devastated by the 2011 big earthquake and tsunami. We had a walking tour and a workshop on tsunami events, response, decision making and recovery. It became particularly important for science communication when we shared different ideas and understood different perspectives from each other at the workshop. We also went to the AORI aquarium exhibit and saw the interesting marine animals in the sea around Otsuchi.

Day 4 started with a hike along the coast at Karakuwa to see some boulders that were shifted by the 2011 tsunami. We took the best group photo at the boulder site with the great view. Following the walk, lunch was an unexpected highlight of the day in a beautiful traditional Japanese house with a garden. We went to the Okawa elementary school after lunch, where they had preserved the destroyed school after the 2011 tsunami for exhibition.

On day 5, we visited the Nakahama elementary school, where 90 lives were saved from the 2011 tsunami and marked as a great success in surviving the catastrophic tsunami event. This visit provided a poignant example of how effective preparation and leadership are essential to survival. We returned back to AORI in the afternoon and enjoyed the delicious BBQ dinner hosted by the whole department.

On the final day, to conclude this international short course, we prepared slides and made group presentations based on what we have learnt from the trip. It was such a pleasure to meet each other from different countries and work as partners. This course ended perfectly with a farewell party at the Fish Club Hama restaurant on the ground floor at AORI. We really enjoyed the fresh fish, sushi and nice dishes prepared by the hospitable chef and staff. Many thanks to all the professors, staffs and teaching assistants that organize the course and help us all the way through the trip, making it a lifetime memorable experience for us all.

New Papers Nature (2026/10/05 - 2026/10/12)

PNAS: M. Henke, Z. Yang, & R. Branch, Improved assessment of Alaskan Arctic coastal wave exposure accounting for landfast ice, Proc. Natl. Acad. Sci. USA 123 (42) e2612829123, https://doi.org/10.1073/pnas.2612829123 (2026).

R. Halonen, Thermodynamic origin of atmospheric new particle formation: Theory for stable nucleating pairs, Proc. Natl. Acad. Sci. USA 123 (42) e2620565123, https://doi.org/10.1073/pnas.2620565123 (2026).

A.G. Fountain, B. Glenn, C. McNeil, & B. Menounos, Extensive glacier loss in the coterminous United States, Proc. Natl. Acad. Sci. USA 123 (43) e2600941123, https://doi.org/10.1073/pnas.2600941123 (2026).

Nature geoscience: Piao, J., Kug, JS., Chen, W. et al. An abrupt shift towards a hotter and drier climate regime in the Western Eurasian Steppe. Nat. Geosci. (2026).

Rodriguez, AB, Ridge, JT, Bost, MC et al. Sea level-induced oyster reef accretion causes minimal net carbon burial change. Nat. Geosci. (2026).

Qian, F., Wang, Y., Costa, KM et al. Transient variability in global oceanic oxygen during the Last Interglacial Period. Nat. Geosci. (2026).

Nature geology: /

Nature communications: Lee, MU., Park, JY., Kim, HK. et al. Hysteresis of extreme precipitation in East Asia under various CO2 removal pathways. Nat Commun (2026).

Poinelli, M., Rignot, E., Seroussi, H. et al. Sea-level contribution from Thwaites Glacier doubles in an observation-constrained ice-sheet model. Nat Commun 17, 10364 (2026).

Zhang, Z., Chen, P., Jamet, C. et al. Asymmetric bloom lengthening drives high-latitude ocean chlorophyll accumulation imbalance. Nat Commun (2026).

Zheng, Y., Zhai, X., Stevens, DP et al. Intensification of near-inertial currents in the Atlantic Ocean over the past two decades. Nat Commun (2026).

Nature climate change: van Westen, RM, Börner, R. & Dijkstra, HA Failure to track a stable AMOC state under rapid climate change. Nat. Clim. Chang. 16, 1195–1206 (2026).

Nature scientific reports: /

ScienceAdvances: Evi Wubben et al. ,Ocean circulation changes rather than global warming drove temperature trends across the Miocene Climatic Optimum.Sci. Adv.12, eadz2555(2026).

New Paper (ELSEVIER, 261005~261012)

Chemical Geology

1. High-precision laser ablation U-Pb geochronology using a Neptune PLUS equipped with two 1013 Ω amplifiers: Age mapping of Jack Hills detrital zircon

Christopher M. Fisher, Dan Bevan, Aleksey Sadekov, Anthony I.S. Kemp

2. An assessment of the Zr/Hf ratio as a proxy of marine clay authigenesis

G. Bayon, P. Giresse, M.-L. Rouget, A. Boissier, ... E. Pucéat

3. The late shoulder season modifies the mobility of iron and dissolved organic carbon in rivers from distinct permafrost regions

Maëlle Villani, Catherine Hirst, Eléonore du Bois d'Aische, Cécile Osy, ... Sophie Opfergelt

Geochimica et Cosmochimica Acta

4. Oxygen isotope exchange unravels million-year long hydrogeochemical evolution of a deep carbonate aquifer in the Swiss Molasse Basin

Christoph Wanner, Lukas Aschwanden, Mirjam Kiczka, H. Niklaus Waber, ... Daniel Traber

5. Two-stage Mg isotope behavior during silicate weathering and its implication for tracing continental weathering intensity

Long Ma, Yuanqiang Guo, Kang-Jun Huang

Palaeogeography, Palaeoclimatology, Palaeoecology

6. Sources of particulate and sedimentary organic matter in the middle Okinawa Trough since the Last Glacial Maximum: Implications for lateral transport across the East China Sea shelf

Libo Wang, Xilin Zhang, Bin Zhai, Mingyu Zhang, ... Yong Zhang

Fieldwork in Kikaijima (9/29-10/2)

こんにちは！D2のYangerです！

I just got back from a field trip to Kikaijima with Professor Hirabayashi. Kikaijima is a small island in Kagoshima Prefecture, east of Amami. Besides being known for its sugar cane and sesame, the island is also famous for its uplifted coral reefs and was recently designated as a Japanese geopark. As we approached the island by air, we could clearly see the classic spur-and-groove formations of its coral reefs.

Our main mission this time was to survey limestone outcrops exposed during excavation for an underground dam. We were joined by Professor Marc Humblet from Nagoya University, an expert on coral and limestone assemblages. With his help, we identified fossils of corals, foraminifera, brachiopods, and other organisms preserved in the limestone. These fossils offered clues about the water depths and environments in which they originally lived. We even found a well-preserved barnacle fossil protruding from the rock face!

We spent two days at the site documenting and sampling the specimens we found in the rock. After long days working under the sun, we were rewarded with beautiful sunsets.

In addition to examining the outcrops, we also had the chance to inspect rock cores collected before construction began. The cores were stored in the gym of an old school, where rows upon rows of boxes filled the space. As we examined the cores and identified sections containing corals, foraminifera, and crustose coralline algae (CCA), we could trace how the island's environment had changed over time.

  

On our final day, we drove around the island to sample groundwater from springs. Professor Hirabayashi explained that our lab has been regularly monitoring the geochemical composition of Kikaijima's groundwater for several years. By using radiocarbon as a tracer, these measurements help us understand how groundwater moves and changes beneath the island.

In just four days, I got a glimpse of the exciting research being conducted on this coral island. A huge thank you to Professor Humblet for helping us identify the various organisms preserved in the limestone and explaining what they can tell us about the island's past environments. I'm also very grateful to Professor Hirabayashi for organizing the trip and teaching me so much about Kikaijima!

New Papers (AGU, etc.) 2026/09/29~2026/10/05

 

Geochemistry, Geophysics, Geosystems

1. Pre-Eruptive Volatiles and Magma Storage Depth for the 2018 Eruption at Mount Veniaminof, Alaska

    E. G. Huggins, P. Ruprecht, M. Loewen, M. Gavrilenko, R. J. Bodnar, M. Harlaux

 

Geophysical Research Letters

2. Cosmogenic ¹⁰Be as a Tracer for Recent Heliospheric Encounters With Interstellar Cold Clouds and Nearby Supernovae

    Anna Nica, Merav Opher, Jesse A. Miller, Jennifer L. Middleton, Joe Giacalone

3. Water Storage Capacity Dynamics in Drained Boreal Peatlands: Responses to Rewetting and Climate Change

Shokoufeh Salimi, Behshid Khodaei, Hjalmar Laudon

4. Climate Change Induced Seasonal Amplification of the Indian Ocean CO₂ Sink

    A. P. Joshi, Kunal Chakraborty, V. V. S. S. Sarma, Prasanna Kanti Ghoshal, B. Sridevi, Zouhair Lachkar

5. Asynchronous Changes in Tempo-Spatial Patterns of the Younger Dryas Hydroclimate in Northeastern China

   Sihan Sun, Yukun Zheng, Yue Wang, Jun Cheng, Yiyin Li, Hongyan Liu, Ulrike Herzschuh

6. Dead Sea Warming and the Origin of Salt Giants

   E. Guillerm, T. K. Lowenstein, V. Gardien, F. Bärenbold, D. Bouffard, A. Brauer, F. Caupin

7. Record-Breaking Humid Heat in Northern China During Summer 2025 Driven by Kuroshio–Oyashio Extension SST Anomalies

   Wenyue He, Huopo Chen, Zhicong Yin, Fei Xie

8. Divergent Influences of Oceanic Western Boundary Currents on Weak and Strong Tropical Cyclones

   Wenting Lou, Tongya Liu, Jiacheng Hong, Yi-Peng Guo, Han Zhang, Dake Chen

 

Paleoceanography and Paleoclimatology

9. Simulated Ocean Oxygen Under Miocene Boundary Conditions

   James R. Berg, David K. Hutchinson, Katrin J. Meissner, Benoît Pasquier, Mark Holzer, Alexandra Auderset

10. Chemostratigraphic Constraints on Oligocene–Miocene Sedimentation and Hiatus Formation at IODP Site U1516, Mentelle Basin: Implications for Deep-Water Circulation in the Eastern Indian Ocean

   Tianqi Sun, Christophe Colin, Zhaokai Xu, Arnaud Dapoigny, Rosella Pinna-Jamme, Dhongil Lim, Gang Hu, Fengming Chang, Hongjin Chen, Wei Wang, Qingchao Fan, Tiegang Li

 

Climate of the Past

11. Ocean warming caused by Late Ordovician glacial onset in a coupled climate-ice sheet simulation

   Yudong Sun, Yonggang Liu, Jiacheng Wu, Kai Man, Haonan Yu, Shuai Yuan, Yizhang Liu, Yue Liu, Qi Cui, Qiang Wei, and Yongyun Hu

12. Holocene-like summer climate during Marine Isotope Stage 11 in northwestern Greenland

    John Michael N. Aguilar, Elizabeth K. Thomas, Diana S. Aga, Paul R. Bierman, Jason P. Briner, Isla S. Castañeda, and Andrew J. Christ

Seawater, Sea Squirts, and Stories from Onagawa

こんにちは！D3のMiyaです！

I recently visited Onagawa to help Professor Tanaka and her students with fieldwork on hoya (sea squirts). Their research focuses mainly on cellulose analysis and DNA-based investigations, while my role was to help collect seawater for dissolved inorganic carbon (DIC), uranium/thorium (U/Th), and oxygen isotope (δ¹⁸O) analyses. I thought hoya is called sea pineapple, but realized only the commonly-eaten species マボヤ is called sea pineapple.

My first encounter with hoya was a few years ago, when I bought a sea pineapple at a supermarket in Otsuchi. It was my first time eating one, and I dissected it myself to prepare it. Cutting into it felt strangely like cutting into a heart—not that I’ve ever cut into one! This time in Onagawa, I got to see a wider variety of sea squirts as we sorted the different species by hand.

We sampled seawater both inside and outside the aquaculture farm, and the team also collected sediment samples. We even got to enjoy a bite of the fresh ones during sampling! 

Alongside the sampling, we sorted different species of hoya by hand, including マボヤ, エボヤ, and 白ボヤ. Working through the specimens gave me a closer look at the variety of sea squirts living in the area—something quite different from my usual work with abalone shells.

One evening, we had dinner with people working at Tohoku University’s Onagawa Field Center, part of the Graduate School of Agricultural Science. Over dinner, they shared their memories of the 2011 earthquake and tsunami.

One person recalled being on a research cruise with the coastal research center when the earthquake struck. After seeing the tsunami, he decided to sail farther offshore rather than return to land. He and his colleague ended up staying offshore for three days.

Hearing this account directly from someone who experienced it made a strong impression on me. Our visit was centered on collecting samples, but the conversations over dinner also offered a glimpse into the experiences of the people who live and work along this coast.

Thank you to Professor Saito, her students, and everyone at the Onagawa Field Center for welcoming me and sharing both their research and their stories. Also thank you Yosuke and Shishi for helping me with preparation and Yusuke for sponsoring the trip!

New Paper Nature and others (25/08/26 -01/09/26)

 

Science Advances

Near-term, geospatial opportunity for biomass carbon storage to address the wildfire and climate crises

Leah K. Clayton, Alexander S. Wyckoff, and Sinéad M. Crotty 

PNAS

Weak prestorm submesoscale sea surface temperature gradients conducive to tropical cyclone intensification

Hanrui Liu, Wenju Cai, Shoude Guan, +4 , and Zhengguang Zhang 

Rethinking the origin of life at seafloor hydrothermal vents

Benjamin M. Tutolo

Recent high-severity wildfires in a dry-conifer landscape are unprecedented over five centuries and foretell future forest loss

Andreas P. Wion, Jens T. Stevens, Jonathan D. Coop, +3, and Ellis Q. Margolis 

Major role for internal variability in tropical Pacific warming pattern over satellite era

Shang-Ping Xie  ,  Ayumu Miyamoto   Qihua Peng , and  Matthew T. Luongo

Nature Geoscience

Fan, CS., Sun, C., Xie, Z.  et al.  Hadley circulation drives material isolation and pole-to-pole teleconnection on Mars.  Nat. Geosci.  (2026). https://doi.org/10.1038/s41561-026-02090-2

Su, Y., Xu, Y., Zhang, X.  et al.  Disturbance characteristics and forest properties regulate surface warming and recovery across Europe.  Nat. Geosci.  (2026). https://doi.org/10.1038/s41561-026-02071-5

Liu, D., Jiang, F., Hu, K.  et al.  Warming potential of atmospheric black carbon modulated by particulate matter.  Nat. Geosci.  (2026). https://doi.org/10.1038/s41561-026-02068-0

Nature Communications

Fan, D., Duarte, CM, Wang, F.  et al.  The global distribution of macroalgal carbon burial in coastal sediments.  Nat Commun  (2026). https://doi.org/10.1038/s41467-026-77215-7

Namur, O., Charlier, B., Cartier, C.  et al.  Carbon distribution in planet Mercury from magma ocean evolution to graphite crust and core composition.  Nat Commun  17 , 9227 (2026). https://doi.org/10.1038/s41467-026-75458-y

Alcott, LJ, Mills, BJW, Bekker, A.  et al.  A nutrient control on oxygenation dynamics during Earth's Great Oxidation Episode.  Nat Commun  (2026). https://doi.org/10.1038/s41467-026-76597-y

Larsen, KMH, Eriksdóttir, G., Hansen, B.  et al.  Iceland-Faroe overflow revealed by in-situ observations.  Nat Commun  (2026). https://doi.org/10.1038/s41467-026-77220-w

Wang, S., Oppo, DW & Ummenhofer, CC Coupling of Pacific and Indian Ocean variability disrupted by 19th century volcanism.  Nat Commun  17 , 8572 (2026). https://doi.org/10.1038/s41467-026-76705-y

Pondom National Centre

Wang, H., Liu, J., Holden, J. et al. Climate warming drives thermal shocks and accelerated freshwater habitat fragmentation. Nat. Clim. Chang. (2026). https://doi.org/10.1038/s41558-026-02731-9

New Papers (Elsevier) 2026/08/25~2026/09/01

Earth and Planetary Science Letters

1. Eastern equatorial Pacific deep water Δ[CO₃^2-] changes during the last glacial maximum and early deglacial

    Matthew W. Schmidt, Brian J. Close, Jennifer E. Hertzberg, Franco Marcantonio

2. Full-waveform tomography of southeastern Tibet: Evidence for dual crustal low-velocity zones and hybrid tectonic processes

    Xinyu Jiang, Xiaodong Song, Xuezhen Zhang, Haoyu Xu, Xingchen Wang, Bin He, Hejun Zhu

Quaternary International

3. Sedimentary characteristics of the Ganges Submarine Delta and its response to chemical weathering during the Mid-Holocene

    Hongmin Wang, Lina Ai, Ashraf Ali Seddique, Bingjie Sun, Hui Zhang, Xiaoyan Li, Peng Cao, Kaikai Wu, Kunshan Wang, Shengfa Liu

4. Thermocline and paleo productivity changes off West Simeulue Island in relation to monsoonal hydroclimate since the Last Glacial Maximum

    Ryan Dwi Wahyu Ardi, Purna Sulastya Putra, Septriono Hari Nugroho, Winda Eka Mandiri Puteri, Khoiril Anwar Maryunani

5. Late Quaternary faunal remains as proxies for the human-environment relationships at San Esteban rockshelter in the northern Chihuahuan Desert, southwest Texas, USA

    Erika S. Blecha, Rolfe D. Mandel

6. Geomorphological dynamics at the coast: A sedimentary stratigraphy for Atlit-Yam, the earliest coastal village at the Eastern Mediterranean and its submerged landscape

    Vishal Kataria, Gilad Shtienberg, Isaac Ogloblin Ramirez, Roni Zuckerman-Cooper, Nimer Taha, Elle Grono, Marko Runjajić, Ehud Galili, Nicolas Waldmann, David E. Friesem

 

New Paper Elsiever (08/18/26 - 08/25/26)

Chemical Geology

1. Influence of partial melting and ancient depletion on helium isotopes of mantle-derived magmas - Andrea Giuliani, Senan Oesch, Federico Munch, Ronghua Cai, Jingao Liu, Mark D. Kurz, Peter H. Barry, Luc S. Doucet, Michael J. Walter 

Earth and Planetary Science Letters

2. Nonlocal elastic unloading as a mechanism for breakdown work scaling in laboratory earthquakes - Chun-Yu Ke, Gauss T. Chang, Gregory C. McLaskey, David S. Kammer, Chris Marone

3. Replacing the elastic model with a simple viscoelastic model for more reliable estimation of geodetic locking depths of strike-slip faults - Yijie Zhu, Kelin Wang, Lin Shen, Edwin Nissen

Global and Planetary Change

4. Characterising the changes and regional drivers of tropical cyclone intensification over the western North Pacific - Yuanke Wu, Tao Gao, Xi Xiao, Wei Zhang, Fuqiang Cao, Yang Yu, Yuzhi Liu, Yumin Zhang

5. Future climate change will intensify snow drought in the high-latitude water tower, Changbai Mountain - Moran Xu, Haiqing Wang, Shilin Zhang, Yingyi Chen, Yu An, Guangxin Zhang, Peng Qi

Marine Geology

6. Deepwater sediment waves in mixed contouritic-turbiditic setting: The Bounty Fan, New Zealand - Séverine Russo, Julien Bourget, Thierry Mulder, Gabriele Uenzelmann-Neben

7. Reassessing continental sediment fluxes at a marginal sea gateway: Quantitative provenance of the Korea Strait Shelf Mud (KSSM) - Minji Seo, Hoi-Soo Jung, Jeongwon Kang, Byung-Cheol Kum, Seok Jang, Moonsoo Lim, Bo-Yeon Yi, Jiyoung Choi

Palaeogeography, Paleoclimatology, Paleoecology

8. Integrating pollen and sedimentary DNA refines reconstructions of vegetation change through human settlement: a case study from Lake Waihau, Aoteroa New Zealand - Xun Li, Georgia Thomson-Laing, Marcus J. Vandergoes, Jamie D. Howarth, Susanna A. Wood

9. Palaeoflood records and environmental impacts on the ancient Shu civilisation on the Chengdu Plain, Southwest China - Ming Huang, Chunmei Ma, Tieyong Bai, Dao Xiang, Cheng Zhu

Quaternary Geochronology

10. Optimising bioapatite 14C dating: Chemical pretreatment efficacy across preservation states in archaeological bone - Huihui Cao, Sizhe Ai, Zongli Wang, Jiale Guo

11. Single-grain luminescence dating of lake-core sediment Kusai Lake on the northern Qinghai-Tibet Plateau - Xiaoling Huang, Jingran Zhang, Hao Long, Aimin Zhang, Yandong Hou, Ji Shen

My week in Fukuoka for AOGS

Last week, I traveled to Fukuoka for the Asia Oceania Geosciences Society (AOGS) conference to present my research on dissolved inorganic radiocarbon within North Pacific Subtropical Mode Water. For one week, I listened to many great talks from scientists around the world.

Fukuoka International Congress Center

My presentation was on the 5th of August in the evening. I was excited to share what I have been researching for the past year of my PhD.

Presenting My Research

I had a lot of fun taking photos on my new (old) digital camera from 2008. I had the chance to explore the city on a road trip with a few old and new friends I met at the conference! The weather was very hot everyday, ranging from 35° to 37°C. 

Sakurai Futamigaura in Itoshima City

Aburayama Katae Observation Deck

Reclining Buddha (Nanzoin)

I hope I will be able to attend AOGS again next year!