Organic matter from the Chicxulub crater exacerbated the K-Pg impact winter - PubMed

Fig. 1.

Compilation of global sites with burn marker observations at the K–Pg boundary. All sites marked in red contain burn markers, including the Chicxulub impact site, marked by a blue cross. Numbers refer to Deep Sea Drilling Project/ODP/IODP sites. ADM, Arroyo de Mimbral, Mexico; AGO, Agost, Spain; BEL, Beloc, Haiti; BRZ, Brazos, Texas, United States; CAR, Caravaca, Spain; CO, Colorado, United States (Madrid East South, Clear Creek North, and Berwind Canyon); CR, Chancet Rocks, New Zealand; FLA, Flaxbourne River, New Zealand; GUB, Gubbio, Italy; HOK, Kawaruppu, Hokkaido, Japan; KEF, El Kef, Tunisia; KLI, Stevns Klint, Denmark; MEG, Meghalaya, India; ND, Mud Buttes, North Dakota, United States; SAS, Saskatchewan, Canada sites (Rock Creek East, Wood Mountain Creek); SUM, Sumbar, Turkmenistan; WOO, Woodside Creek, New Zealand. Sites with elevated total or specific PAH spike: M0077 (26), 738, 1262, MEG (27), CAR (20), KLI (22), GUB (22), WOO (22), HOK (28), ADM (21), ND (29), CO (29), BEL (14), 605 (30). Sites with elevated soot or charcoal: M0077 (26, 31), 738 (31), 1262 (31), CAR (20), KLI (18, 23, 32), GUB (18), WOO (18, 23, 33), ADM (21), CR (18, 33), BRZ (34), KEF (35), AGO (32, 35), SUM (24), 465 (36), SAS (37). Sites with carbon cenospheres: KLI (19), WOO (19), SAS (19). Sites with fullerenes: WOO (38), FLA (38), BRZ (34). Figure modified from Bralower et al. (2020) (31).